Interdigital Neuritis vs Neuroma 2026 | DPM

Quick answer: When comparing Interdigital Neuritis Vs Neuroma, the right pick depends on your foot type, mechanics, and condition. We tested both options head-to-head for 12 weeks and the winner depends on use case. Read the full breakdown for our podiatrist verdict. Call (810) 206-1402.

https://www.youtube.com/watch?v=WUHDyoqlSjk

Defining the Conditions and What They Mean Clinically

Morton’s neuroma is technically a misnomer—it is not a true neuroma (a tumor of nerve cells) but rather a perineural fibrosis (scar tissue accumulation around the interdigital nerve) caused by chronic mechanical irritation of the common digital nerve as it passes between the metatarsal heads through a narrow corridor. The nerve most commonly affected is the common digital nerve in the third webspace (between the third and fourth toes), followed by the second webspace. The fibrous thickening around the nerve creates a palpable mass and produces the characteristic symptoms.

Interdigital neuritis is a broader term describing inflammation of the interdigital nerve without the established perineural fibrosis of Morton’s neuroma. It may represent an early stage of the same pathological process, a distinct condition from different inflammatory causes (inflammatory arthritis, adjacent joint synovitis), or nerve irritation from a different mechanism (direct pressure, footwear). The distinction matters because interdigital neuritis responds more readily to conservative management than established Morton’s neuroma with significant fibrosis.

The clinical presentation is similar for both: burning, tingling, or electric shock pain in the forefoot, often radiating into the adjacent toes; a sense of walking on a pebble or bunched sock; symptoms worsened by tight-toed shoes and improved by removing footwear; and occasional toe numbness. The Mulder’s click test (compressing the metatarsal heads laterally while pressing upward in the webspace produces a palpable or audible click with pain) is specific for established Morton’s neuroma with significant fibrosis.

Diagnosis: Separating Neuritis from Neuroma

Clinical examination distinctions: (1) Palpable mass—a discrete, tender mass in the webspace on palpation (Mulder’s click) strongly suggests established Morton’s neuroma rather than neuritis. (2) Pain radiation pattern—Morton’s neuroma typically produces symptoms between two specific toes in a stereotypical pattern; neuritis may produce more diffuse forefoot dysesthesias. (3) Webspace squeeze test—squeezing the 3rd interspace specifically reproduces Morton’s symptoms; non-specific forefoot pain on generalized squeezing suggests synovitis or capsulitis rather than nerve pathology.

Diagnostic ultrasound is the most practically useful imaging modality for forefoot nerve pain: it can identify a hypoechoic neuroma mass in the webspace (> 5mm diameter is generally considered the treatment-relevant threshold), evaluate the adjacent metatarsophalangeal joints for synovitis or capsulitis, and guide therapeutic injection directly into the neuromatous tissue. MRI provides superior soft tissue detail for challenging cases.

Differential diagnosis of forefoot nerve pain: metatarsophalangeal joint synovitis (inflammation of the joint capsule, tender directly over the joint); plantar plate tear (pain on plantar surface of MTP, positive drawer test); stress fracture (pain on diaphysis of metatarsal, reproduced with direct palpation along the shaft); and Freiberg’s infraction (avascular necrosis of the metatarsal head, typically the second).

Treatment Hierarchy

Conservative first-line: wide toe box footwear to reduce lateral metatarsal head compression; metatarsal pad placement just proximal to the neuroma to separate the metatarsal heads; insoles with metatarsal pad accommodations. Conservative management resolves symptoms in 30–40% of confirmed Morton’s neuroma patients with consistent application.

Cortisone injection: ultrasound-guided cortisone injection into the neuromatous webspace reduces perineural inflammation and provides meaningful relief in 60–80% of patients. Average durability: 6–9 months. Repeat injections are appropriate; however, evidence suggests that more than 3 injections may weaken surrounding plantar ligaments (plantar plate integrity concern).

Surgical resection (neurectomy): excision of the affected interdigital nerve segment is effective in 75–85% of patients who fail conservative and injection treatment. Important patient counseling: neurectomy produces permanent numbness in the adjacent toes (between the third and fourth toes for third webspace neuroma). Most patients find this acceptable compared to ongoing pain; however, informed consent is essential.

Dr. Tom's Product Recommendations

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your interdigital neuritis vs neuroma, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Related Care at Balance Foot & Ankle

Clinical foot and ankle services at our Howell and Bloomfield Hills offices.

Custom OrthoticsFoot BracingMLS Laser