Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Township, MI
Last reviewed: May 2026
The most important clinical decision with Pain Between Toes: 8 Causes (Morton’s Neuroma, Soft Corn, Athlete’s Foot & More) isn’t which treatment to choose — it’s identifying which subtype you have first. Our podiatrists see patients treated for the wrong subtype for months before the correct diagnosis leads to full resolution. Call (810) 206-1402 — expert podiatric care across Michigan.
Pain between the toes — in the interdigital spaces — has a surprisingly specific set of causes. The web spaces are a common site for nerve entrapment, fungal infection, and skin breakdown, each requiring entirely different treatment. Identifying which space is affected and the quality of pain narrows the diagnosis quickly.
Causes of Pain Between the Toes: Diagnosis Table
| Condition | Space Affected | Pain Quality | Visible Signs | Confirming Test |
|---|---|---|---|---|
| Morton’s neuroma | 3rd–4th (most common); 2nd–3rd (second) | Electric, burning, or shooting pain; numbness into adjacent toes | None visible; no swelling on surface | Mulder’s click: squeeze forefoot + direct pressure into web space = click + pain |
| Interdigital athlete’s foot | 3rd–4th and 4th–5th most common | Itching, burning; skin irritation | Macerated (white, wet) skin; scaling; fissures | Clinical: fungal skin pattern; KOH prep confirms |
| Interdigital soft corn (heloma molle) | 4th–5th most common | Sharp stabbing pain with shoe pressure | Whitish, macerated corn between toes; moist keratin buildup | Palpation reveals hard keratin core; X-ray shows condylar prominence |
| Interdigital bursitis | Any space; 3rd–4th common | Aching pressure-type pain; tender to squeeze | Mild fullness between toes; no erythema | Ultrasound: fluid-filled sac; MRI can confirm and differentiate from neuroma |
| Contact dermatitis / eczema | Any space | Itching, burning; may be diffuse | Erythema, vesicles, scaling; bilateral or unilateral | Patch testing; resolves with topical steroid unlike fungal (which worsens) |
| Erythrasma | 3rd–4th and 4th–5th | Mild itching; less intense than athlete’s foot | Brown-red, slightly scaly patch | Wood’s lamp: coral-red fluorescence (pathognomonic for Corynebacterium) |
| Synovitis / capsulitis (2nd MTP) | 2nd web space / plantar 2nd MTP area | Aching at base of 2nd toe; pre-dislocation syndrome | 2nd toe floating up or drifting; plantar callus | Drawer test 2nd MTP: vertical instability; swollen joint on palpation |
| Interdigital cyst | Any space | Pressure pain with shoe wear; visible lump | Palpable, non-tender sac between toes | Ultrasound: cystic lesion; transillumination if superficial |
Morton’s Neuroma vs. Interdigital Bursitis: Key Differences
These two conditions are the most commonly confused causes of web space pain. Morton’s neuroma is a perineural fibrosis of the common digital nerve — not a true tumor. Interdigital bursitis is an inflamed fluid-filled sac that often coexists with neuroma. On MRI or ultrasound, bursa appears as a fluid-filled cyst; neuroma appears as a solid hypoechoic mass. Treatment differs: bursitis often responds well to corticosteroid injection, while neuroma may require sclerosing alcohol injections, RF ablation, or surgical excision.
Soft Corn (Heloma Molle): The Most Overlooked Cause
Soft corns are extremely common, extremely painful, and frequently misdiagnosed. They form in the 4th–5th web space where condylar prominences of adjacent toe bones press against each other through moist skin. The result is a macerated, whitish, rubbery corn that causes sharp stabbing pain. Unlike hard corns on the top of toes, soft corns are tender to palpation between the toes and appear white due to moisture. Treatment involves padding to separate the toes, gentle débridement, and in resistant cases surgical condylectomy (removal of the bone prominence).
Treatment by Diagnosis
| Condition | First-Line Treatment | Resistant Cases |
|---|---|---|
| Morton’s neuroma | Metatarsal pad + wider shoes; cortisone injection | Sclerosing alcohol series; RF ablation; surgical excision |
| Interdigital athlete’s foot | Terbinafine 1% cream once daily x 1–2 weeks | Oral terbinafine if extensive; check for tinea unguium |
| Soft corn (heloma molle) | Toe spacer (lamb’s wool or silicone); débridement | Surgical condylectomy of prominent phalanx |
| Interdigital bursitis | Wider shoe; cortisone injection with ultrasound guidance | Surgical bursectomy ± neuroma excision |
| Contact dermatitis | Identify and remove allergen; topical steroid | Patch testing; dermatology referral |
| 2nd MTP capsulitis | Buddy taping; metatarsal pad; cortisone injection | Flexor digitorum tendon transfer; MTP joint stabilization |
Balance Foot & Ankle evaluates all causes of inter-toe and web space pain at our Howell and Bloomfield Township locations. Accurate diagnosis — particularly differentiating neuroma from bursitis from soft corn — guides effective treatment. Call (810) 206-1402.
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American Academy of Orthopaedic Surgeons: Morton’s Neuroma
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For a complete clinical overview: Heel Pain Causes & Treatment Guide — every cause of foot and heel pain diagnosed
What causes sharp heel pain in the morning?
Morning heel pain is the hallmark of plantar fasciitis — the plantar fascia tightens overnight and micro-tears with first steps. Heel spurs and Achilles tendonitis cause similar morning pain.
When should I see a podiatrist for heel pain?
See a podiatrist if heel pain persists more than 2 weeks, limits walking, wakes you at night, or follows an injury with bruising.
Doctor Answer
What causes pain between the toes and how is it treated?
Pain between the toes is commonly caused by Morton’s neuroma, interdigital bursitis, hammertoes, or athlete’s foot. Morton’s neuroma — a thickened nerve — causes burning or tingling between the third and fourth toes. Treatment depends on the diagnosis and may include wider footwear, metatarsal pads, corticosteroid injections, or surgery for unresponsive cases. A podiatrist pinpoints the exact cause for targeted treatment.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) 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 made him one of the most-followed foot & ankle educators on YouTube.