Hammer toe (toe deformity)

Types and anatomy

Hammer toe typically results from an imbalance between the muscles, tendons and ligaments that normally hold the toe straight. When the proximal joint contracts it creates a raised middle joint and a lowered toe tip. In a flexible hammer toe the joint can still be straightened manually; in a rigid hammer toe the joint is stiff and often painful. The toes most commonly affected vary by individual anatomy, with the second toe frequently involved.

Causes and risk factors

Causes include congenital structural differences, repetitive pressure or trauma, arthritis, and neuromuscular diseases that disturb balance of the small foot muscles. A major, preventable factor is narrow, short or high-heeled footwear that forces the toe into a bent position over time. Poor shoe fit is often implicated in development and progression of the deformity (shoe fit and footwear).

Symptoms and complications

Common symptoms are visible bending of the toe, pain or irritation when wearing shoes, corns or calluses on the top of the middle joint or tip, redness and swelling. Left untreated a rigid hammer toe can limit walking and lead to skin breakdown. People with diabetes or poor circulation should be cautious because ulcers and infections can develop where pressure is greatest.

Treatment and prevention

Diagnosis is clinical; weight-bearing examination and occasional X-rays clarify alignment. Initial care emphasizes conservative measures:

• Wearing roomy, low-heeled shoes with wide toe boxes
• Padded pads, toe splints or silicone sleeves to reduce pressure
• Custom orthotics or shoe modifications to correct biomechanical contributors
• Stretching exercises and physical therapy to strengthen toe muscles
• Nonsteroidal anti-inflammatory drugs for pain control

If conservative care fails or the toe becomes rigid and painful, surgical options are considered. Procedures range from tendon lengthening and joint capsule release to partial joint resection or fusion, chosen to restore alignment and relieve pressure. Recovery varies by procedure but often requires postoperative shoe modifications and a period of limited weight-bearing.

Prevention and outlook: Early attention to symptoms and corrective footwear can often halt progression. While flexible hammer toes respond well to nonoperative measures, longstanding rigid deformities usually need surgical correction for durable relief. See a foot specialist when conservative measures do not reduce pain, when walking is limited, or if skin breakdown occurs.