Heel bone spurs show up on X-rays and get blamed for chronic heel pain — but most bone spurs cause no pain at all. The real source of pain is almost always the soft tissue attached to the spur’s location: the plantar fascia or the Achilles tendon. Understanding this distinction completely changes the treatment approach and explains why surgery to remove the spur often fails while targeted soft tissue management succeeds.
What Heel Bone Spurs Are — and Why Most of Them Are Painless
A heel bone spur — medically called a calcaneal osteophyte — is a calcium deposit that forms an outgrowth from the calcaneus (heel bone) at a site of chronic mechanical stress. Over months and years, repeated tension at the attachment points of the plantar fascia (the bottom of the heel) or the Achilles tendon (the back of the heel) stimulates the body to lay down new bone at those sites — a biological response to chronic tensile loading that produces the characteristic spur shape visible on X-ray.
This formation mechanism reveals the most clinically important fact about heel spurs: the spur is a consequence of mechanical stress, not the cause of pain. The spur represents years of cumulative loading at the attachment site. It is a structural record of the forces applied to that tendon or fascial origin — but the pain that drove the patient to seek an X-ray is coming from the inflamed soft tissue at those same attachment sites, not from the calcified projection itself.
*Approximate estimates from published podiatric, orthopaedic, and radiology literature.
The most important reframing about heel spurs
When a doctor shows a patient the heel spur on their X-ray and says “that’s what’s causing your pain,” the patient understandably focuses on the spur as the problem. This framing drives unnecessary procedures — injections into the spur, extracorporeal shockwave therapy directed at the spur — while the actual problem, the inflamed plantar fascia or Achilles tendon, continues. The correct framing: the spur marks the location of chronic mechanical stress; the pain comes from the stressed soft tissue at that location; treat the mechanical overload of the soft tissue, not the calcium deposit.
Two Types: Plantar vs Posterior Heel Spur — Completely Different Problems
The location of the bone spur on the calcaneus determines the associated soft tissue condition, the pain pattern, and the treatment approach. Confusing the two types produces misdirected treatment.
Bottom of the heel — at the plantar fascia origin
Grows from the inferior surface of the calcaneus in a forward direction, at or near the medial tubercle where the plantar fascia attaches. Associated condition: plantar fasciitis — inflammation of the plantar fascia at its calcaneal origin. Pain location: bottom of the heel. Characteristic symptom: worst pain with the first steps after getting out of bed or after sitting for extended periods (“post-static dyskinesia”). Pain improves with warming up, then may worsen again after prolonged activity. The spur points toward the toes, in the same direction as the plantar fascia.
Back of the heel — at the Achilles insertion
Grows from the posterior surface of the calcaneus at the Achilles tendon insertion. Also called a Haglund deformity when the posterior calcaneal prominence is enlarged. Associated condition: insertional Achilles tendinopathy — degeneration and inflammation at the Achilles attachment. Pain location: back of the heel. Characteristic symptoms: pain at the heel-tendon junction aggravated by shoe counter pressure against the prominence, by activities that load the Achilles (stair climbing, running), and by wearing low-heeled or flat shoes. Different from mid-portion Achilles tendinopathy, which affects the tendon body above the heel.
The treatment approach is opposite for each type
Plantar heel spur pain (plantar fasciitis) is worsened by flat, unsupported footwear — it improves with heel cushioning and arch support that reduces plantar fascia tension. Posterior heel spur pain (insertional Achilles tendinopathy) is worsened by shoes with hard heel counters pressing against the prominence — it improves with footwear that avoids heel counter contact and by eccentric loading exercises. Prescribing heel cushion inserts for a posterior spur compresses exactly the area that needs to be offloaded. Getting the type right before treating is essential.
What Causes Heel Bone Spurs — the Biomechanical and Lifestyle Drivers
Bone spurs form at tendon and ligament attachment sites (entheses) in response to chronic mechanical stress — a process called enthesopathy. When the plantar fascia or Achilles tendon repeatedly micro-tears at the calcaneal attachment, the healing response includes osteoblast activation at the enthesis. Over months and years of cumulative micro-damage and repair, the new bone laid down during the healing cycles accumulates into the characteristic spur shape. This is why heel spurs are almost never found in young adults and become increasingly common with age — they represent decades of loading history at the attachment site.
The specific activities that accelerate this process are those that repeatedly overload the plantar fascia or Achilles: running (especially on hard surfaces), prolonged standing on hard floors, sudden increase in activity level after a sedentary period, and any biomechanical pattern that concentrates stress at the calcaneal attachment rather than distributing it along the whole tendon or fascial length.
People with flat feet or significant overpronation have one of the highest risk factors for plantar heel spur development. The mechanics are direct: when the arch collapses under body weight during the stance phase, the plantar fascia is dynamically elongated — the origin at the heel is pulled away from the insertion at the toes with every step. This repetitive elongation is exactly the mechanism that creates micro-damage at the calcaneal insertion, driving the bone formation response that becomes a spur over time.
This is also why stability and motion-control shoes — which resist arch collapse and therefore reduce plantar fascia elongation — are consistently associated with lower rates of plantar fasciitis and heel spur pain in people with flat feet. The shoe is directly reducing the loading mechanism driving the spur formation.
Paradoxically, high-arch feet are also at elevated risk for plantar heel spur formation — through a different mechanism. In a rigid cavus foot, the plantar fascia is structurally shorter and under chronically greater baseline tension than in a normal-arch foot. The windlass mechanism — which normally distributes load along the fascia during push-off — operates with reduced compliance. The result is sustained high tension at the calcaneal attachment throughout the stance phase, without the dynamic elongation of flat feet but with constant elevated resting tension.
Plantar fasciitis and calcaneal spurs in high-arch feet are driven by this structural over-tension and require a different treatment emphasis: plantar fascia stretching to increase fascial length, and cushioned footwear that reduces the impact forces transmitted to the attachment site, rather than arch support that would further tighten an already-elevated arch.
Body weight is directly transmitted to the calcaneal attachment of the plantar fascia with every step at multiples of body weight. Obesity is one of the strongest individual risk factors for both plantar fasciitis and heel spur development — the relationship is dose-dependent. Even modest weight gain can tip a previously compensated fascia or Achilles attachment into chronic overload if it coincides with other risk factors.
Rapid increases in activity level in overweight individuals — common at the beginning of exercise programmes — create the highest short-term risk of plantar fasciitis and Achilles tendinopathy: the attachment sites are loading-naïve and the elevated body weight amplifies every loading cycle. The combination of new loading + high body weight + inadequate footwear is the most common scenario in acute-onset heel spur pain in middle-aged adults.
Footwear that has lost its midsole cushioning provides little protection against ground impact forces at the heel. Running shoes lose approximately 30–50% of their shock absorption capacity after 400–500 miles of use, even when the outsole still looks intact — the internal foam compresses permanently and cannot rebound. Walking shoes and casual footwear degrade similarly. People who continue wearing shoes past their functional life are effectively barefoot from a cushioning standpoint, concentrating ground impact on the calcaneal fat pad and the plantar fascia attachment.
Flat footwear with no heel lift — flip-flops, barefoot shoes, ballet flats — places the Achilles and plantar fascia in a maximally stretched position throughout wear, loading the calcaneal attachment continuously. Going barefoot for prolonged periods on hard floors (kitchen, bathroom tiles) provides similar loading, particularly as the first activity of the morning when the fascia is at its shortest after overnight rest.
How to Tell If a Bone Spur Is Causing Your Heel Pain — Key Diagnostic Signs
Because bone spurs are often incidental findings on X-rays taken for other reasons, and because many people with chronic heel pain have both a bone spur and a separate soft tissue problem, correctly attributing the pain is the first step in targeted treatment.
Plantar heel spur / plantar fasciitis — the diagnostic pattern
- Location: Pain on the bottom of the heel, typically at or just anterior to the medial heel pad — not at the very centre of the heel but slightly toward the arch side
- Timing: Worst with the first 5–10 steps in the morning or after sitting for extended periods (“post-static dyskinesia”). Characteristically improves with walking and warming up, then may worsen again after prolonged standing or walking
- Palpation: Tenderness directly over the medial calcaneal tubercle (the bony prominence on the inner-bottom aspect of the heel)
- Aggravating factors: Flat footwear, barefoot walking on hard floors, prolonged standing, running
- Imaging: X-ray may show a plantar calcaneal spur — but its presence or absence does not confirm or exclude plantar fasciitis. Ultrasound or MRI shows plantar fascia thickening and oedema at the calcaneal attachment in active plantar fasciitis
Posterior heel spur / insertional Achilles tendinopathy — the diagnostic pattern
- Location: Pain at the back of the heel — at the junction of the Achilles tendon and the heel bone. Visible and palpable bump may be present at the posterior heel
- Timing: Stiff and painful in the morning; may improve with warmup then worsen with activity. Aggravated by activities loading the Achilles (running, stair climbing, walking on inclines)
- Footwear-specific pain: Distinctly worsened by shoes with hard heel counters pressing against the posterior spur. Pain may be better in open-backed shoes or clogs that avoid heel contact
- Palpation: Tenderness at the posterior calcaneal surface at the Achilles insertion, not along the tendon body above the heel (mid-portion Achilles tendinopathy is above the heel, not at the attachment)
- Imaging: X-ray shows posterior calcaneal spur and/or Haglund deformity. MRI/ultrasound shows insertional tendon pathology — degeneration, calcification within the tendon, bursitis
The morning pain test — the most reliable home diagnostic
The characteristic first-step morning pain of plantar heel spur pain has a specific mechanism: overnight, the plantar fascia shortens to its resting length; stepping down loads the contracted fascia suddenly, straining the already-inflamed origin. Pain then improves as the fascia lengthens with walking. This pattern — worst in the morning, improving with activity, worsening again after prolonged rest — is highly characteristic of plantar fasciitis-associated heel spur pain. Heel pain that is worst during activity rather than after rest, or that is consistently worst at the back rather than the bottom of the heel, suggests a different diagnosis.
Conservative Treatment — What Works for Plantar and Posterior Heel Spur Pain
Approximately 90% of chronic plantar heel pain resolves with consistent conservative management within 12 months. The treatments below address the underlying soft tissue overload — not the spur itself — which is why they work, and why spur removal without addressing these factors does not.
For plantar heel spur pain (plantar fasciitis)
Plantar fascia stretching — the single most evidence-supported intervention
Stretching the plantar fascia before weight-bearing reduces the sudden loading of a contracted fascia at the calcaneal attachment. The most effective protocol: while sitting on the edge of the bed before the first step of the morning, cross the affected foot over the opposite knee and pull the toes back toward the shin for 30 seconds; repeat 3 times. Do this again before any period of standing after prolonged sitting. Evidence from randomised trials consistently shows plantar fascia-specific stretching produces greater improvement than calf stretching alone or general foot exercises. Multiple daily repetitions accumulate benefit; once per day is insufficient.
Calf stretching — reducing the proximal tension driving plantar fascia overload
Tight calf muscles (gastrocnemius and soleus) reduce ankle dorsiflexion, increasing plantar fascia tension during walking. Both straight-leg (gastrocnemius) and bent-knee (soleus) stretches should be performed — 30–45 seconds each, twice daily. The soleus (bent-knee) stretch is often neglected but is particularly important for plantar fasciitis because the soleus restricts dorsiflexion in midstance, exactly when plantar fascia load is highest.
Night splints — preventing overnight fascial shortening
A night splint holds the foot in dorsiflexion (toes pointing up) throughout sleep, preventing the plantar fascia from shortening to its contracted resting length overnight. This directly addresses the mechanism of first-step morning pain and reduces the strain on the calcaneal attachment at the first morning loading. Studies show night splints accelerate resolution of plantar fasciitis when combined with daytime stretching and appropriate footwear. The compliance challenge: they are uncomfortable to wear for some people. A stocking night splint (softer, lighter) has better compliance than rigid boot splints with similar efficacy.
Heel cups and orthotics — cushioning and unloading the calcaneal attachment
Silicone heel cups cushion the impact at the calcaneal fat pad and provide a small amount of heel elevation that reduces plantar fascia tension. Semi-custom arch-supportive insoles (Superfeet Carbon, Powerstep Pinnacle, Spenco Total Support) provide plantar fascia offloading through arch support that reduces the dynamic elongation during stance. For people with flat feet and overpronation, orthotics addressing the arch support deficit are particularly effective. Custom orthotics offer advantages over off-the-shelf in cases where foot shape is atypical or the flat-foot overpronation pattern is significant.
Extracorporeal shockwave therapy (ESWT) — for recalcitrant cases
ESWT uses focused acoustic waves to stimulate the healing response at the plantar fascia attachment. It is the most evidence-supported non-surgical procedure for chronic plantar fasciitis that has not responded to 3–6 months of conservative management. Studies show it produces significant improvement in 60–75% of chronic cases. It does not remove the bone spur — it stimulates soft tissue healing at the attachment. Available at specialist foot and ankle clinics; typically 3 sessions over 3 weeks. Mild discomfort during treatment; effectiveness is best in cases that genuinely represent plantar fascia pathology rather than other diagnoses.
Corticosteroid injection — for acute flares, not long-term management
A corticosteroid injection into the plantar fascia origin provides 4–12 weeks of anti-inflammatory relief. Effective for acute pain reduction but carries a documented risk of plantar fascia rupture and fat pad atrophy with repeated use. Typically limited to 1–2 injections per episode, combined with concurrent stretching and footwear management to address the underlying cause. Injection without concurrent conservative management produces predictable recurrence as the structural loading problem remains unaddressed.
For posterior heel spur pain (insertional Achilles tendinopathy)
Key difference from mid-portion Achilles tendinopathy: The standard treatment for mid-portion Achilles tendinopathy is eccentric heel drop exercise (lowering the heel below the level of the step). This is contraindicated for insertional tendinopathy — eccentric loading compresses the degenerated insertion against the posterior calcaneal spur and worsens symptoms. Insertional tendinopathy treatment uses isometric loading (sustained contractions without movement) and later heavy slow resistance exercises, specifically avoiding the end-range dorsiflexion that compresses the insertion.
Heel raise inserts: A 10–15mm heel raise reduces Achilles tension load at the insertion by reducing the required ankle dorsiflexion during walking. This is the most immediately effective symptomatic measure for insertional tendinopathy — using a heel raise in the shoe provides rapid pain relief by offloading the attachment. Combined with isometric calf loading exercises performed in a range that does not compress the insertion.
Footwear modification: The shoe heel counter must not press against the posterior spur. Shoes with notched heel collars (specific designs that cut away material at the Achilles insertion area), soft heel counter materials that yield at the posterior prominence, or a small cut-out modification at the heel counter area of an existing shoe are the most effective immediate footwear interventions for posterior spur pain.
The Best Shoes for Bone Spur Heel Pain — Features and Specific Recommendations
The footwear requirements for plantar and posterior heel spur pain differ in important ways. Using the wrong type for the wrong spur makes symptoms worse. Here is what each requires and specific models that deliver it.
Heel cushioning — the primary footwear requirement for plantar heel spur pain
The plantar calcaneal fat pad — the body’s own cushioning at the heel strike point — thins with age and repeated heavy loading. In people with plantar heel spur pain, the fat pad is often depleted at exactly the site of maximum ground contact. Adequate heel cushioning in the shoe substitutes for the lost natural cushioning and reduces the peak impact force transmitted to the calcaneal attachment with each heel strike. The minimum effective rearfoot stack height for symptomatic plantar heel spur pain is approximately 20mm; maximally cushioned shoes with 28–38mm heel stacks provide the most significant protection. The cushioning must be in the appropriate zone — central to slightly medial at the heel — not concentrated at the outer heel only.
For plantar heel spur, recommended models: Hoka Bondi 8 (38mm heel stack, maximum cushion); ASICS Gel-Kayano 30 (excellent rearfoot gel cushioning + stability for flat feet); Brooks Addiction Walker 2 (2E/4E, maximum cushion for walking); New Balance 990v6 (2E/4E, well-cushioned heel); Saucony Echelon 9 (2E, cushioned, wide toe box). All available in wide widths — important because heel spur patients often have flat, wide feet.
Heel drop (8–12mm) — reducing plantar fascia tension at rest and during activity
Heel drop — the height difference between the heel and toe in the shoe — determines how stretched the plantar fascia and calf muscles are during standing and walking. A zero-drop or minimal-drop shoe requires maximum ankle dorsiflexion throughout the gait cycle, maintaining the plantar fascia under sustained higher tension. A moderate heel drop (8–12mm) reduces the ankle dorsiflexion required during midstance, reducing the plantar fascia tension at the calcaneal attachment. This is why high-heeled shoes sometimes relieve plantar fasciitis pain temporarily — the heel elevation reduces plantar fascia tension — though the other features of high heels (instability, narrow toe box) create different problems. The therapeutic sweet spot is a moderate heel drop without the downsides of high heels.
Target heel drop: 8–12mm for plantar fasciitis management. This range is standard in most stability and maximum-cushion running and walking shoes. Avoid: zero-drop or minimal-drop shoes (<4mm) while actively symptomatic — the sudden increase in plantar fascia tension during the transition to low-drop footwear frequently triggers or worsens plantar fasciitis flares.
Arch support and medial posting — for plantar fasciitis with flat feet
When overpronation and flat feet are contributing to plantar fascia overload (the most common combined scenario), a stability shoe with medial posting directly addresses one of the primary loading mechanisms. Every step that overpronates dynamically elongates the plantar fascia at the calcaneal attachment — every step in a stability shoe that limits this overpronation reduces that elongation. The cumulative effect over thousands of daily steps is significant: stability footwear reduces the ongoing loading rate at the attachment that drives both the spur formation and the inflammation. For people with normal arch height and heel spurs, pure cushioning without medial posting is appropriate.
For flat feet + plantar heel spur: Brooks Ariel 20 (women’s motion control, 2E); Brooks Beast 20 (men’s motion control, 2E/4E); ASICS Kayano 30 (stability + cushion, 2E); New Balance 860v14 (stability, 2E/4E); Saucony Guide 16 (mild stability). All provide both medial posting and adequate heel cushioning for combined management.
Soft or notched heel counter — the critical feature for posterior heel spur pain
For insertional Achilles tendinopathy with a posterior heel spur, the heel counter is the enemy. A rigid, structured heel counter that wraps the posterior heel presses directly against the spur prominence with every step — the repetitive contact irritates the inflamed tendon insertion and the overlying bursa. Two footwear solutions: (1) Notched heel collar — some shoe models have a cut-out or relief area at the posterior-superior heel collar position, specifically designed to avoid contact with the Achilles insertion; (2) Soft heel counter material — leather or foam that yields when it contacts the spur rather than pressing rigidly against it. In acute posterior spur pain, open-backed footwear (clogs, sandals, mules) that eliminates all heel counter contact entirely is often the most immediate relief measure.
For posterior heel spur, recommended models: Hoka Clifton 9 (soft, padded heel counter with posterior collar notch); Brooks Ghost 15 (soft heel counter, well-tolerated by posterior spur patients); Altra Torin 7 (zero-drop, wide heel, soft posterior collar); Dansko Professional clogs (no heel counter — eliminates contact entirely); Birkenstock Boston (enclosed toe, no heel contact). For acute flares, any clog or backless shoe provides immediate relief.
Supportive house shoes — addressing the barefoot floor penalty
One of the most commonly overlooked contributors to persistent heel spur pain is the barefoot or flat-slipper indoor environment. Many people manage their outdoor footwear carefully — appropriate cushioning and arch support — but walk barefoot or in thin flat slippers at home for many hours daily. For plantar heel spur pain, the first steps of the morning on cold hard floors with a contracted, unsupported plantar fascia are frequently the most painful moments of the day. Placing supportive house shoes with arch support and heel cushioning by the bed and wearing them immediately on getting up eliminates this barefoot loading spike that often delays recovery.
Recommended indoor footwear for heel spur management: Vionic Tide II (arch-supported slipper); Orthofeet Asheville (house shoe with arch support and heel cushion, 2E/4E); Birkenstock Boston or Zurich (arch-supporting closed clogs — particularly good for posterior heel spur as they have no heel counter); OluKai ‘Ohana (flip-flop with arch support — for warm climates). The principle: never take the first steps of the day without heel cushioning and arch support.
Specific footwear recommendations by scenario
| Scenario | Recommended models | Key feature addressing the problem |
|---|---|---|
| Plantar heel spur, everyday walking | Hoka Bondi 8 (wide), Brooks Addiction Walker 2 (2E/4E), New Balance 990v6 (2E/4E) | Maximum rearfoot cushioning + 8–12mm heel drop |
| Plantar heel spur + flat feet | ASICS Gel-Kayano 30 (2E), Brooks Ariel 20 / Beast 20 (2E/4E), Saucony Guide 16 (2E) | Stability + maximum cushion combined |
| Plantar heel spur, running | Brooks Adrenaline GTS 23 (2E), ASICS Kayano 30 (2E), Saucony Guide 16 (2E) | Stability + rearfoot gel/foam stack for impact protection |
| Posterior heel spur, everyday | Hoka Clifton 9, Brooks Ghost 15, Altra Torin 7 | Soft/notched heel counter avoids spur contact |
| Posterior heel spur, acute flare | Dansko Professional, Birkenstock Boston, any backless clog | No heel counter — complete elimination of posterior contact |
| Morning first-step pain (plantar) | Vionic Tide II, Orthofeet Asheville, Birkenstock Mayari | Supportive house shoe worn immediately on rising |
| High arch + plantar heel spur | Hoka Bondi 8, ASICS Gel-Nimbus 25 (2E), Saucony Ride 16 | Maximum cushion neutral — no arch post on already-high arch |
“The shoe is the most accessible, most consistently used intervention for chronic heel pain — worn for 16 hours a day, it either loads the calcaneal attachment continuously or protects it. No clinical treatment replaces the cumulative effect of appropriate footwear across those 16 hours.”
— Core principle in chronic heel pain managementSurgical Treatment — When It Is and Isn’t Appropriate
Surgery for heel bone spurs is the last resort, recommended only when consistent, comprehensive conservative management has failed to provide adequate pain relief after 12 months. It is appropriate for far fewer patients than the number who are offered it.
Surgery for plantar heel spur / recalcitrant plantar fasciitis
Plantar fascia release: The plantar fascia is partially cut at its calcaneal origin, releasing the tension driving the chronic inflammatory load. This addresses the soft tissue pathology rather than the spur directly — the spur may or may not be separately removed (and its removal does not improve outcomes compared to fascia release alone in most studies). The procedure can be performed open or endoscopically (minimal incision). Results are good in appropriately selected patients — approximately 70–80% satisfactory outcome. Important caveat: partial plantar fascia release permanently alters the foot’s arch mechanics and can produce arch collapse or lateral column pain as longer-term complications. This risk requires explicit informed consent and careful patient selection.
Spur removal alone (exostectomy): Rarely performed as an isolated procedure because the evidence shows no benefit over fascial release alone. The spur is not the source of pain, so removing it without addressing the fascial pathology does not produce lasting improvement. Appropriate only in the unusual situation where the spur itself is producing a mechanical irritation rather than the classical soft tissue inflammation pattern.
Surgery for posterior heel spur / insertional Achilles tendinopathy
Posterior calcaneal prominence resection (Haglund resection): The bony prominence at the posterior calcaneus is surgically reduced — removing both the spur and any Haglund deformity — eliminating the source of shoe counter contact and tendon insertion compression. Combined with debridement of degenerated tendon tissue at the insertion. Recovery is longer than plantar fascia surgery: 3–4 months before return to full activity. Success rates are good in appropriately selected patients with combined structural posterior calcaneal prominence and insertional tendon pathology that has failed conservative management.
Surgery criteria that must all be met
Before any surgical consideration is appropriate: (1) Consistent, correctly applied conservative management for at least 12 months — this means daily stretching, appropriate footwear throughout the day including indoors, orthotics, and physiotherapy; not occasional stretching when the pain is bad; (2) Trial of ESWT if available — this non-surgical procedure is effective in 60–75% of recalcitrant cases and should precede surgical consideration; (3) Imaging confirmation that the clinical diagnosis is correct — surgery on misdiagnosed heel pain produces poor results. If all three criteria are met and significant pain and functional limitation persist, surgical consultation is appropriate.
Five Myths About Heel Bone Spurs — Fact-Checked
“My heel pain is caused by the bone spur — removing it will cure the pain.”
The bone spur is a consequence of chronic mechanical stress at the calcaneal attachment, not the primary cause of pain. Pain comes from the inflamed soft tissue — the plantar fascia or Achilles tendon insertion — at the same location. Surgical removal of the spur without addressing the underlying fascial or tendon pathology produces poor long-term results because the cause of the pain has not been treated. Studies comparing spur removal alone to plantar fascia release consistently show that the soft tissue procedure produces better outcomes than exostectomy alone. This is why the most effective conservative treatments — stretching, orthotics, footwear — all target the soft tissue mechanics rather than the calcium deposit.
“If I have a bone spur on my X-ray, I definitely have plantar fasciitis.”
Approximately 50% of people with plantar calcaneal spurs on imaging have no heel pain whatsoever. The spur is an incidental finding in many of these people, discovered during imaging for another reason. Conversely, many people with active plantar fasciitis have no bone spur on X-ray at all — the soft tissue inflammation can be present without the chronic loading having yet produced a spur. The clinical diagnosis of plantar fasciitis is based on symptoms and physical examination, not on the presence or absence of a bone spur on imaging. A bone spur without symptoms requires no treatment; symptoms without a bone spur still require treatment for plantar fasciitis.
“Heel cushion inserts help both types of heel spur pain.”
This is only true for plantar heel spur pain (plantar fasciitis), where heel cushioning reduces the ground impact load at the calcaneal attachment. For posterior heel spur pain (insertional Achilles tendinopathy), a heel cushion insert raises the heel inside the shoe — which changes the contact pressure between the posterior heel and the shoe counter, often pressing the already-inflamed posterior spur harder against the heel counter material. For posterior spur pain, the most effective immediate footwear intervention is a heel raise (which reduces Achilles tension at the insertion) combined with a shoe that does not press against the back of the heel — not a cushion insert placed under the heel. Getting the spur type right before choosing an insert type is essential.
“Stretching makes bone spurs worse by pulling on them.”
Plantar fascia stretching is one of the most evidence-supported treatments for plantar fasciitis and does not worsen the bone spur. The spur is calcified bone — it does not respond to the tensile forces of stretching. What stretching does is reduce the resting tension in the plantar fascia by improving its length and reducing calf tightness, which decreases the load at the calcaneal attachment over time. This directly addresses the mechanism driving both the pain and, with long-term consistent treatment, reduces the ongoing stimulus for further spur growth. The concern that stretching aggravates the condition likely comes from the experience of stretching being painful in the acute phase — pain during a correct stretch does not mean the stretch is harmful; it reflects the current sensitivity of the inflamed tissue. The correct response is to reduce the stretch intensity, not to abandon it.
“Bone spurs can be dissolved with apple cider vinegar or special supplements.”
No dietary supplement, topical application, or orally consumed substance dissolves calcaneal bone spurs. Bone is a living tissue, but its remodelling is regulated by systemic factors (parathyroid hormone, vitamin D metabolism, mechanical loading) — not by the chemical composition of dietary inputs at the concentrations achievable through consumption. Apple cider vinegar, magnesium supplements, and other widely marketed “bone spur dissolvers” have no evidence of efficacy for calcaneal osteophytes. More importantly, dissolving the spur — if it were possible — would not address the soft tissue inflammation that is actually causing the pain. The management approach that works focuses on reducing the mechanical stress at the attachment site through stretching, footwear, and orthotics: this addresses both the symptoms and reduces the ongoing stimulus for further spur growth.
Warning Signs That Need Professional Attention
Sudden, severe increase in heel pain — particularly after a popping or tearing sensation. This may indicate plantar fascia rupture — a serious complication most commonly occurring after corticosteroid injections or in people with chronic, weakened fascia. Requires urgent imaging and clinical assessment.
Heel pain that is worst during activity rather than after rest, or that is present at rest. This pattern is less typical of plantar fasciitis and more consistent with a stress fracture of the calcaneus, bone tumour, or systemic inflammatory arthritis (ankylosing spondylitis, psoriatic arthritis — which cause enthesitis at exactly the same locations as bone spurs). Clinical assessment and imaging are required to exclude these conditions.
Bilateral heel pain — both heels simultaneously affected. While bilateral plantar fasciitis occurs, bilateral simultaneous presentation should raise consideration of a systemic condition: inflammatory arthropathy (ankylosing spondylitis, reactive arthritis, psoriatic arthritis) commonly causes bilateral plantar and Achilles enthesitis. Investigation including inflammatory markers and rheumatological assessment is appropriate.
Any heel pain in a person with diabetes, peripheral neuropathy, or peripheral arterial disease. The same assessment caution as for any foot problem in these populations — the specific diagnosis needs confirmation and the management must account for the additional complications these conditions create.
No improvement after 3–6 months of consistently applied conservative management. Recalcitrant plantar fasciitis that has not responded to daily stretching, appropriate footwear throughout the day, orthotics, and physiotherapy should be reassessed: the diagnosis may need reconsideration, ESWT should be discussed, or the adequacy of conservative management should be evaluated.
Heel pain with swelling, warmth, or redness that is not explained by recent activity. While these signs can accompany plantar fasciitis bursitis, they should prompt assessment to exclude infection, gout at the heel (uncommon but possible), or the early presentation of inflammatory arthritis.
Frequently Asked Questions
The most common questions about heel bone spurs and chronic heel pain — answered directly.
Not necessarily. Approximately 50% of people with plantar calcaneal spurs on X-ray have no heel pain. If you have a bone spur on imaging but no symptoms, no treatment is needed. Asymptomatic bone spurs do not require removal, monitoring programs, or protective footwear beyond what you would normally choose for comfort and foot health.
If you have both a bone spur on X-ray and heel pain, the spur is the likely location of the pathology but is not necessarily the cause of the pain — the inflamed soft tissue at the attachment site is. Treatment should target the soft tissue mechanics: stretching, appropriate footwear, and orthotics are the foundation of management. The spur will remain on X-ray throughout successful treatment — its resolution is not the endpoint; pain resolution and functional improvement are.
Plantar fasciitis is inflammation of the plantar fascia at its calcaneal origin — a soft tissue condition. A heel bone spur is a calcified bony outgrowth from the calcaneus at the same location — a structural finding on imaging. They are related but distinct: plantar fasciitis is the clinical condition (pain, inflammation); the heel spur is its radiological marker (calcium deposit from chronic stress). Plantar fasciitis frequently occurs without a bone spur; a bone spur frequently exists without active plantar fasciitis.
The confusion arises because they coexist in many patients and appear at the same location. When both are present, treating plantar fasciitis treats the pain — the spur remains but becomes asymptomatic as the soft tissue heals. Treatment targets the fasciitis, not the spur.
An asymptomatic heel spur — one with no associated pain — does not restrict running. Run in well-cushioned shoes and continue as normal.
A symptomatic heel spur with active plantar fasciitis or insertional Achilles tendinopathy requires management of the loading to allow the soft tissue to heal. Complete rest is rarely necessary and often counterproductive — total unloading leads to tissue weakening. The goal is modified loading: reducing running mileage (typically 50% initial reduction), replacing some running with lower-impact activities (cycling, swimming), ensuring running shoes have adequate heel cushioning and appropriate drop for the spur type, and performing the stretching programme consistently. Most recreational runners with plantar fasciitis can maintain some running activity throughout management as long as the cumulative load is within the tissue’s healing capacity — a measure best assessed by whether symptoms are improving week over week rather than day over day.
Generally, no. A calcaneal bone spur that is visible on X-ray represents calcified bone that has been laid down over years — it does not spontaneously dissolve when the associated soft tissue condition resolves. The spur typically remains visible on imaging indefinitely. This is not clinically significant: as plantar fasciitis or insertional Achilles tendinopathy heals, the spur becomes asymptomatic even though it remains structurally present. The goal of treatment is symptom resolution and functional recovery — not radiological resolution of the spur.
In some cases, very small initial calcifications within soft tissue (as opposed to true bony spurs at the calcaneal cortex) may partially reduce over time. But for established calcaneal osteophytes, persistence on imaging after successful treatment is the norm. Patients who return for follow-up imaging and see their spur still present should not interpret this as treatment failure if their symptoms have resolved.
For some people — particularly those whose heel pain developed or worsened after changing to less supportive footwear — switching to well-cushioned, arch-supportive shoes produces complete symptom resolution without any other intervention. This is more likely when the footwear change is recent and the condition is not yet chronic. For established chronic plantar fasciitis or insertional Achilles tendinopathy, footwear alone is rarely sufficient — stretching is almost always required in addition, and orthotics often contribute meaningfully.
The most common scenario where footwear change alone produces dramatic improvement: someone who has been wearing flat sandals, flip-flops, or worn-out shoes all day at home switches to arch-supportive house shoes or any cushioned shoe with heel support, and experiences significant morning pain reduction within days to weeks. This happens because the indoor barefoot time was the dominant loading source — eliminating it removes the primary pain trigger. Even in these cases, maintaining the stretching programme is advisable to prevent recurrence.
People with diabetes require additional care in heel spur management for two reasons. First, corticosteroid injections — commonly used for plantar fasciitis flares — can temporarily elevate blood glucose in diabetic patients. This is usually modest and transient but should be discussed with the prescribing physician, particularly in patients with poorly controlled diabetes. Second, the reduced pain sensation of neuropathy may mask the developing severity of heel pain — a diabetic patient with significant neuropathy may underreport pain that would prompt a non-diabetic patient to seek care earlier.
For footwear: the therapeutic footwear requirements of diabetic patients overlap significantly with those for heel spur management — cushioned, supportive, extra-depth, seamless interior. A shoe that is therapeutic for both the diabetic neuropathy risk and the heel spur pain can usually be identified, and many Medicare therapeutic footwear-qualified models meet both criteria. Custom orthotics combining plantar fascia offloading and full plantar protection are appropriate for diabetic patients with heel spur pain. All foot care including any nail cutting, callus management, or injection procedures in diabetic patients with neuropathy should be performed or supervised by a podiatrist.
Disclaimer: This article is for general educational and informational purposes only and does not constitute medical advice. Persistent heel pain, sudden worsening of heel pain, bilateral heel pain, or any heel pain in a person with diabetes should be assessed by a podiatrist or orthopaedic specialist. Shoe and orthotic recommendations are general guidance; individual fit and appropriateness should be verified professionally, particularly for people with diabetes, neuropathy, or complex foot conditions.
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