Beyond the Curl: Hammertoe in 2026 — Causes, Treatment Options, and the Best Shoes to Stop Progression

What Is Hammertoe? — Anatomy, Types & Progression

Hammertoe is a progressive foot deformity in which one or more of the smaller toes — most commonly the second toe — bends abnormally at the middle joint, creating a claw-like or hammer-shaped appearance. The condition develops gradually, often over years, and can affect any of the four lesser toes. Left untreated, the toe may become rigid, painful, and difficult to straighten even passively.

To understand hammertoe, it helps to look at the anatomy. Each lesser toe has three bones (phalanges) and two joints: the proximal interphalangeal (PIP) joint and the distal interphalangeal (DIP) joint. In hammertoe, the PIP joint buckles upward while the DIP joint curls downward, creating the characteristic “hammer” shape. This imbalance results from muscle-tendon dysfunction — the flexor tendons overpower the weaker extensor tendons, pulling the toe into a bent position.

Clinicians classify hammertoe into two main types based on flexibility:

• Flexible (reducible) hammertoe — The toe can still be straightened manually. The joint is not yet fixed, and conservative treatments such as toe exercises, splints, and proper footwear are most effective at this stage.
• Rigid (fixed) hammertoe — The joint has become stiff and cannot be straightened without surgical intervention. Soft tissue and joint changes have set in, often accompanied by corns, calluses, and chronic pain.

A closely related condition is mallet toe, which affects only the DIP joint (the joint closest to the nail tip), while claw toe involves both the PIP and DIP joints along with a hyperextension of the metatarsophalangeal (MTP) joint at the base of the toe. Accurate diagnosis matters because treatment approaches differ slightly for each deformity.

Causes and Risk Factors — Why Toes Curl

Hammertoe does not have a single cause. Instead, it results from a combination of biomechanical, genetic, and environmental factors. Understanding these drivers is essential for both prevention and treatment selection.

The most significant modifiable risk factor is footwear. Shoes with a narrow toe box — especially high heels, pointed dress shoes, and cowboy boots — force the toes into a flexed, crowded position for hours at a time. Over months and years, the flexor tendons adapt by shortening, making it increasingly difficult for the toe to lie flat. The American Orthopaedic Foot & Ankle Society estimates that shoe-related factors contribute to nearly 80% of hammertoe cases in women.

Structural foot issues also play a major role. People with a second toe longer than the big toe (Morton’s foot) are at higher risk because the longer toe is forced to bend more inside standard shoes. Flat feet (pes planus) and high arches alter the mechanical load on the toes, creating instability that can trigger hammertoe over time. Arthritis — particularly rheumatoid arthritis and osteoarthritis — can weaken the joint capsules and ligaments, accelerating deformity.

Other notable risk factors include:

• Age — The prevalence climbs sharply after age 50 due to cumulative wear, tendon laxity, and age-related muscle atrophy in the foot.
• Gender — Women are affected 2.5 to 4 times more often than men, almost entirely due to footwear patterns.
• Diabetes — Diabetic neuropathy can cause intrinsic muscle wasting in the foot, leading to muscle imbalance and hammertoe.
• Family history — Genetic predisposition to foot structure and tendon strength plays a role.
• Previous toe injury — Fractures or dislocations can alter joint mechanics and increase future risk.

Symptoms and Red Flags — When to Take Action

Hammertoe symptoms range from subtle to debilitating. Many people dismiss early signs as normal foot fatigue or minor irritation, but the condition is progressive. Recognizing the stages can help you seek care before the toe becomes rigid.

Early-stage symptoms include a visible upward bend at the middle joint of the toe that you can still straighten with your fingers. There may be slight redness or tenderness at the top of the bent joint where it rubs against the shoe. Some people report a mild burning sensation or a feeling that the toe is “catching” inside the shoe. At this stage, the toe is still flexible, and conservative treatments have the highest success rate.

Mid-stage symptoms involve a fixed or nearly fixed bend that is difficult to fully straighten. Corns (thickened, hard skin) develop on the top of the bent joint, and calluses form on the ball of the foot or on the tip of the toe from abnormal pressure. Pain becomes more consistent, especially during walking or standing for long periods. Finding shoes that fit comfortably becomes increasingly challenging.

Late-stage symptoms include a completely rigid toe that cannot be moved passively. The corns may become painful, inflamed, or even ulcerated in people with diabetes or poor circulation. The toe may begin to overlap or underlap adjacent toes, causing secondary deformities. Arthritis in the affected joint can cause deep, aching pain even at rest.

Diagnosis — How Hammertoe Is Evaluated

A proper hammertoe diagnosis is straightforward and typically does not require advanced imaging. A podiatrist or orthopedic foot specialist will begin with a clinical examination, assessing the toe’s flexibility, range of motion, and the presence of corns, calluses, or skin breakdown. They will also evaluate the foot’s overall structure — arch type, alignment of the big toe, and the angle of the metatarsal bones.

During the exam, the doctor will attempt to manually straighten the toe to determine whether it is flexible or rigid. They will also check for instability at the MTP joint (the joint where the toe meets the foot), which often accompanies hammertoe and can influence treatment decisions. A simple “drawer test” — gently moving the toe forward and backward at the base — can reveal ligamentous laxity or subluxation.

X-rays (weight-bearing views) are commonly ordered to confirm the diagnosis and assess the degree of joint damage. X-rays can show the angle of the PIP joint, the presence of arthritis, and whether the metatarsal bones are properly aligned. In some cases, ultrasound or MRI may be used to evaluate soft tissue structures like tendons and joint capsules, particularly if surgical repair is being considered.

Your doctor will also ask about your footwear habits, occupation, activity level, and any chronic conditions such as diabetes, arthritis, or neuropathy. This holistic picture helps determine the most appropriate treatment plan. If you have diabetes, a podiatrist may also perform a monofilament test to check for loss of protective sensation, which changes how aggressively hammertoe needs to be managed.

Treatment Options — From Padding to Surgery

Treatment for hammertoe exists on a spectrum. The approach depends on the flexibility of the joint, the severity of symptoms, your activity level, and your overall health. In all cases, the earlier you start, the more options you have.

Conservative (Non-Surgical) Treatments

For flexible hammertoe, conservative care is the first line of defense and can halt progression in the majority of cases. These treatments do not reverse the bend, but they relieve pain, prevent worsening, and allow you to stay active:

Surgical Treatments

When conservative measures fail to control pain or the toe becomes rigid, surgery is the only way to correct the deformity. The specific procedure depends on the joint flexibility and location of the contracture. Common surgical options include:

Best Shoes for Hammertoe — What to Look For and What to Avoid

The right shoes are the single most effective tool for managing hammertoe — both for prevention and for symptom relief after the deformity develops. A good shoe for hammertoe does three things: it eliminates compression, reduces friction, and supports the foot’s natural mechanics.

Prevention and Daily Foot Care

Preventing hammertoe — or keeping it from getting worse — comes down to daily habits and smart choices. While you cannot change your foot structure or your family history, you can control the environment your toes live in.

Footwear habits that protect your toes

• Wear the right size shoe. Measure your feet at least once a year — foot size and width can change with age, pregnancy, and weight changes. Many adults wear shoes that are half to a full size too small.
• Rotate your shoes. Avoid wearing the same pair every day, especially if they are the least bit tight. Rotating allows the shoe to fully dry and decompress.
• Use toe spacers during stretching or at home. Toe separators worn during seated activities can gently counter the inward compression from shoes.
• Avoid going barefoot on hard surfaces for extended periods. Without supportive footwear, the foot’s arch and intrinsic muscles have to work harder, which can contribute to muscle imbalance over time.

Exercises for toe flexibility and strength

A daily 5-minute routine can maintain flexibility and support the muscle balance that keeps toes straight:

• Towel curls: Place a towel on the floor and use your toes to scrunch it toward you. Repeat 10 times per foot.
• Toe extensions: While seated, manually pull each toe upward toward the top of the foot and hold for 15 seconds. Repeat 3 times per toe.
• Marble pickups: Pick up marbles with your toes and drop them into a cup. This strengthens the intrinsic foot muscles.
• Achilles stretch: Stand facing a wall, place one foot back with the heel on the ground, and lean forward until you feel a stretch in the calf. Hold for 30 seconds. Tight calves increase forefoot pressure and worsen hammertoe.

Frequently Asked Questions About Hammertoe

Myths vs. Facts — What Really Works

Hammertoe is surrounded by misconceptions that can delay proper treatment. Here are the most common myths — and the evidence-based facts you need.