What Is Metatarsalgia?

Metatarsalgia is a general term describing pain at the ball of the foot — specifically at the plantar surface of the metatarsal heads, the rounded bony prominences where the metatarsals join the toes. It is not a single diagnosis but rather a symptom that can result from numerous underlying conditions, each requiring different treatment. Understanding the specific cause of ball-of-foot pain is essential for effective management.

Common Causes of Metatarsalgia

Hammertoe Deformity

The most common structural cause of metatarsalgia is hammertoe — contracture of the lesser toe that causes the metatarsal head to become excessively prominent on the plantar surface. When the toe cannot lie flat, it no longer distributes pressure along its length during push-off, and all plantar forefoot pressure concentrates at the metatarsal head. Over time, the fat pad beneath the metatarsal head migrates distally, removing its natural cushioning. Custom orthotics with metatarsal pads reduce pressure at these prominent areas; surgical hammertoe correction addresses the structural deformity causing the overload.

Morton Neuroma

A Morton neuroma — a benign thickening of the interdigital nerve, most commonly between the third and fourth metatarsals — causes burning, numbness, and electric shock sensations at the ball of the foot. Neuroma pain is typically shooting and radiates into the affected toes, distinguishing it from the more diffuse aching of other metatarsalgia causes. Compression between the metatarsal heads — exacerbated by narrow footwear — is both the cause and the mechanism of symptom provocation. Corticosteroid injection, sclerosing injection protocols, and surgical excision are effective treatments.

Stress Fracture

Metatarsal stress fractures cause localized forefoot pain that is initially activity-related and progresses to rest pain without treatment. The second metatarsal — the longest in most feet and the one bearing the greatest share of forefoot load — is most commonly affected. Standard X-rays may be negative in early stress fractures; MRI or bone scan identifies stress reaction before cortical fracture develops. Offloading and activity modification are the primary treatments, with surgical fixation reserved for displaced fractures or high-risk locations.

First Ray Insufficiency

When the first metatarsal is elevated, hypermobile, or insufficient for weight-bearing — as in flatfoot with hypermobile first ray or bunion deformity — the forefoot shifts lateral load to the second and third metatarsals, overloading them. This secondary metatarsalgia requires addressing the first ray insufficiency — through orthotics for mild cases or surgical stabilization for severe hypermobility — rather than treating the symptomatic lesser metatarsals in isolation.

High Heels and Improper Footwear

High-heeled shoes transfer weight substantially from the heel to the forefoot. A two-inch heel increases forefoot plantar pressure by approximately 57 percent. Prolonged wearing of elevated heels, narrow toe boxes, or worn-out shoes with depleted midsole cushioning creates forefoot overload that is entirely mechanical and resolves with footwear modification in many patients.

Fat Pad Atrophy

The plantar fat pad — a specialized anatomical cushion that absorbs shock beneath the metatarsal heads — undergoes progressive atrophy with age, steroid injections, collagen disorders, and certain diseases. Patients with fat pad atrophy feel like they are walking on bare bones. Custom orthotics with full-length cushioned insoles and metatarsal padding compensate for the lost natural cushioning.

Diagnosis

Accurate diagnosis of metatarsalgia requires identifying the underlying cause. Weight-bearing X-rays assess metatarsal alignment, length pattern, and structural deformity. MRI identifies stress fractures, fat pad atrophy, and nerve pathology. Ultrasound diagnoses Morton neuroma and bursitis. Physical examination assesses toe flexibility, plantar fat pad thickness, and the location of maximum tenderness to differentiate among the various causes.

Treatment Principles

Treatment is directed at the specific underlying cause. Footwear modification — wider toe box, lower heel, better cushioning — addresses mechanical causes from inappropriate shoes. Custom orthotics with metatarsal pads and offloading modifications treat structural causes including hammertoe and first ray insufficiency. Corticosteroid injection treats acute bursitis and Morton neuroma. Physical therapy addresses equinus and intrinsic foot weakness contributing to forefoot overload. Surgical options — hammertoe correction, neurectomy, Weil osteotomy for metatarsal length discrepancy — are available for structural causes that fail conservative management.

Getting Evaluated for Ball of Foot Pain

Because metatarsalgia has numerous causes requiring different treatments, a thorough podiatric evaluation — including clinical examination and weight-bearing X-rays — is the most efficient path to accurate diagnosis and effective care. Contact Balance Foot & Ankle for comprehensive evaluation of forefoot pain.

Dr. Tom Biernacki, DPM

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Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.