Neuroma vs Metatarsalgia: Differences 2026 | DPM

Feature	Morton’s Neuroma	Metatarsalgia
Pain character	Electric, burning, shooting, radiating into toes	Dull, aching, bruised, pressure-type
Exact location	Interdigital web space (between 3rd–4th most common)	Plantar metatarsal head(s); directly under the bone
Radiation into toes	Common — electric shooting into adjacent toes	Uncommon — localized to plantar forefoot
Mulder’s click test	Positive in 60–70% of cases	Negative
Shoe removal relief	Often immediate and dramatic	Gradual; less dramatic than neuroma
X-ray finding	Normal (soft tissue condition)	May show plantar plate tear, subluxation, or stress fracture
MRI/Ultrasound	Fusiform nerve enlargement in web space	May show plantar plate pathology, bursitis, or normal
Best conservative treatment	Metatarsal pad + wide shoe + corticosteroid injection	Metatarsal pad + rocker sole + address biomechanical cause
Surgical treatment	Neurectomy (nerve removal)	Weil osteotomy (shorten metatarsal) or plantar plate repair

Treatment	Effective for Neuroma	Effective for Metatarsalgia	Notes
Wide toe-box footwear	Yes — reduces interspace compression	Yes — reduces metatarsal head compression	First-line for both; most impactful single change
Metatarsal pad (behind met heads)	Partially — if also spreads interspace	Yes — excellent for primary metatarsalgia	Pad placement matters: behind vs. between metatarsal heads
Corticosteroid injection	Yes — 50–80% temporary relief; may need repeat	Limited — treats associated bursitis only	Highly specific to neuroma; best for 3–6 month relief
Sclerosing alcohol injection	Yes — 70–80% reduction at 1 year	No	3–7 injections weekly; highly specific to neuroma
Rocker-sole shoe	Partially helpful	Yes — excellent for reducing forefoot load	Rocker sole more targeted for structural metatarsalgia
Custom orthotic	Yes — with interspace wedge/pad	Yes — with metatarsal pad and arch support	Both benefit; orthotic design differs between conditions

Why This Distinction Matters

Forefoot pain is one of the most common complaints we evaluate at Balance Foot & Ankle, and in our clinic, the single most common mistake we see is treating metatarsalgia with neuroma injections — or vice versa. Both conditions cause pain in the ball of the foot, both are worsened by activity and tight shoes, and both improve temporarily with rest. The critical difference lies in the character, location, and clinical findings. Getting the diagnosis right on the first visit saves months of failed treatment. This guide gives you the clinical framework to tell them apart — and to understand when they coexist, which happens in roughly 15-20% of our patients.

What Is Morton’s Neuroma

Morton’s neuroma is not technically a true tumor — it is a perineural fibrosis, a thickening of the tissue around a plantar digital nerve caused by chronic compression and irritation. The nerve most commonly affected is the common digital nerve in the third intermetatarsal space (between the 3rd and 4th metatarsal heads), accounting for approximately 80% of cases. The second interspace (between the 2nd and 3rd metatarsal heads) is the second most common location. The condition is far more common in women than men — roughly 8:1 — because of narrow toe box footwear that compresses the intermetatarsal spaces. The nerve becomes entrapped between the metatarsal heads with each step, causing progressive fibrotic thickening that further worsens the entrapment in a self-perpetuating cycle. By the time most patients present to us, the neuroma has been present for months or years.

What Is Metatarsalgia

Metatarsalgia is not a single diagnosis — it is a symptom complex describing pain under the metatarsal heads caused by excessive plantar pressure. The second metatarsal head is the most common location because it is typically the longest metatarsal and bears disproportionate load. Causes include: a long second metatarsal (Morton’s foot structure), high-arched foot (cavus deformity that concentrates pressure in the metatarsal region), flexor plate injury or rupture at the MTPJ, hammertoe deformity driving the metatarsal head plantarward, significant first ray hypermobility transferring load to the second metatarsal, and inflammatory arthritis affecting the MTP joints. In our clinic, we also frequently see metatarsalgia in patients who have recently begun barefoot or minimalist exercise after years of cushioned shoe wear — the foot is not adapted to the new load demands.

The Key Clinical Tests That Separate Them

Mulder’s Click Test (Neuroma-Specific)

The Mulder’s click test is the most specific bedside test for Morton’s neuroma. To perform it: grasp the forefoot with one hand and compress the metatarsal heads together laterally (squeeze the first and fifth metatarsal heads toward each other), while simultaneously pressing upward on the intermetatarsal space from the plantar surface with the thumb of the other hand. A positive test produces an audible or palpable click as the enlarged nerve is displaced between the metatarsal heads — often accompanied by the patient’s typical burning or electric pain. Sensitivity is approximately 62%; specificity 95%. In other words, a positive Mulder’s click is highly confirmatory; a negative test does not rule out neuroma. In our clinic, we reproduce the patient’s exact symptom with this test in about 70% of confirmed neuroma cases.

Interspace Palpation vs Metatarsal Head Palpation

Direct palpation distinguishes the two conditions anatomically. For neuroma: place your thumb in the interdigital space between the 3rd and 4th toes from the plantar surface, pressing directly into the webspace. Neuroma pain is exquisitely tender in the space between the metatarsal heads, not on them. For metatarsalgia: the pain is directly under the metatarsal head — palpating the plantar surface of the 2nd or 3rd metatarsal head reproduces the pain. The difference is subtle (millimeters of distance) but reliable. Asking the patient to point with one finger to where it hurts most is often the fastest initial test — if they point into the toe webspace, think neuroma; if they point directly under a prominent bone, think metatarsalgia.

Toe Spread Sign

A large neuroma will sometimes cause the 3rd and 4th toes to splay apart at rest — the gap sign or toe spread sign. This occurs because the enlarged nerve mass physically pushes the toes apart. When present, this is pathognomonic for an interdigital neuroma. It is only seen with neuromas above approximately 5mm in diameter and is therefore not a sensitive finding, but when it is present, the diagnosis is essentially confirmed without imaging.

Metatarsal Stress Loading Test

For suspected metatarsalgia: with the patient seated, passively dorsiflex the toe (extend the MTP joint) while palpating under the metatarsal head. This loads the plantar plate and metatarsal head. Metatarsalgia pain reproduces or worsens with this maneuver. Additionally, ask the patient to stand on tiptoe — metatarsalgia pain typically intensifies with tip-toe standing due to increased forefoot loading; neuroma pain sometimes improves briefly because tiptoe positioning briefly widens the intermetatarsal space before worsening with sustained compression.

Symptom Comparison

The character of symptoms provides the first differentiation before any physical examination. Morton’s neuroma produces a distinctive burning, electric, or sharp shooting pain that radiates into the third and fourth toes — patients often describe it as like walking on a marble, like stepping on a pebble that is not there, or like an electric shock into the toes. The pain is often relieved by removing the shoe and massaging the foot. Metatarsalgia produces a duller, aching, or burning pain located directly under the ball of the foot — described as a bruised feeling, like walking on a stone, or soreness under the second toe area. Metatarsalgia does not typically radiate into the toes. Both conditions are worsened by prolonged walking, narrow footwear, and standing on hard surfaces. Numbness or tingling in the toes (3rd and 4th most commonly) strongly favors neuroma over metatarsalgia.

Imaging — When and What

The diagnosis of both conditions is primarily clinical — imaging confirms rather than discovers. For neuroma: ultrasound is the first-line imaging study of choice. It identifies the hypoechoic mass in the intermetatarsal space with high sensitivity (90-95% for neuromas above 5mm). Ultrasound also allows real-time guided injection — we inject directly into the neuroma under ultrasound visualization at Balance Foot & Ankle, which dramatically improves injection accuracy over landmark-based injection. MRI is reserved for cases where ultrasound is equivocal, surgical planning requires precise neuroma localization, or the diagnosis is uncertain. For metatarsalgia: weight-bearing foot X-rays (AP, lateral, oblique) assess metatarsal length pattern, MTP joint alignment, and any bony pathology. MRI or ultrasound is ordered when flexor plate rupture or stress fracture is suspected as the underlying cause. In our clinic, we use diagnostic ultrasound-guided injection as a diagnostic tool as well — if a corticosteroid injection placed precisely at the neuroma resolves the patient’s pain, the diagnosis is confirmed.

Treatment — Where the Paths Diverge

Morton’s Neuroma Treatment

The neuroma treatment ladder begins conservatively and escalates based on response. Step 1: footwear modification — wide toe box, metatarsal pad positioned just proximal to the neuroma to spread the metatarsal heads and decompress the nerve. This alone resolves symptoms in approximately 30% of mild neuromas. Step 2: corticosteroid injection — ultrasound-guided injection of corticosteroid into the intermetatarsal space reduces perineural inflammation and provides 50-80% of patients with significant short-term relief; approximately 30-40% have durable long-term relief from a series of injections. Step 3: alcohol sclerosing injections — a series of 3-7 dilute ethanol injections (4% concentration) into the neuroma progressively destroys the nerve fibers causing pain. In experienced hands, sclerosing achieves 65-80% success rates and is an excellent alternative to surgery. Step 4: neurectomy — surgical excision of the affected common digital nerve. Success rates are 80-90% for experienced surgeons using dorsal approach. Patients should be counseled that permanent numbness in the 3rd-4th toe webspace is expected after neurectomy — the nerve is gone — but the burning and electric pain resolves.

Metatarsalgia Treatment

Metatarsalgia treatment is centered on load redistribution. Metatarsal pads — placed just proximal to the metatarsal heads (not under them) — redistribute pressure away from the painful head by plantarflexing the proximal metatarsal and elevating the head. This is the single most effective conservative intervention and works within days when positioned correctly. Custom orthoses with a metatarsal dome or accommodation cutout for the affected head address the underlying biomechanical cause more durably than prefabricated pads alone. Footwear with a rocker-bottom sole reduces peak pressure under the metatarsal heads during push-off by 50-60%. For flexor plate pathology, taping the MTP joint in plantarflexion to offload the plantar plate allows healing. Corticosteroid injection into the MTP joint reduces synovitis. Surgical options — metatarsal osteotomy to shorten or elevate a prominent metatarsal head — are reserved for structural cases that fail conservative care; we perform Weil osteotomies for this indication at Balance Foot & Ankle.

Not ideal for: Patients who need a metatarsal pad accommodation specifically — PowerStep Pinnacle provides excellent arch support and metatarsal dome positioning for both metatarsalgia and neuroma management. The built-in metatarsal lift helps decompress the forefoot with every step.

Not ideal for: Open wounds or broken skin. Doctor Hoy’s natural arnica gel helps with the soft tissue soreness and post-injection discomfort associated with neuroma treatment — appropriate once the skin is fully intact.

Frequently Asked Questions

Can you have both neuroma and metatarsalgia at the same time

Yes — coexistence occurs in 15-20% of forefoot pain cases. A chronically painful neuroma alters gait mechanics, and the resulting compensatory loading can produce metatarsalgia in the adjacent metatarsal heads. Metatarsal head prominence from hammertoe or hypermobility can also compress the interdigital nerve, causing secondary neuroma formation. When both are present, treatment must address both: orthotic load redistribution for the metatarsalgia component AND nerve-directed therapy for the neuroma. Treating only one component in a dual diagnosis explains many failed neuroma treatments.

How accurate is ultrasound for diagnosing Morton’s neuroma

High-resolution ultrasound in experienced hands has 90-95% sensitivity and specificity for neuromas above 5mm in diameter. Neuromas below 5mm may be missed on ultrasound even with optimal technique. MRI has similar sensitivity but is more expensive and takes longer — we reserve it for surgical planning or equivocal ultrasound results. The most practical diagnostic approach in our clinic is ultrasound-guided injection: if placing a small volume of anesthetic precisely at the suspected neuroma completely abolishes the patient’s symptoms for several hours, the diagnosis is confirmed regardless of imaging findings.

When should I consider neuroma surgery

Neurectomy is appropriate when: conservative care (footwear modification plus metatarsal pad) has failed for 3 months, a series of 2-3 corticosteroid injections has not provided durable relief, and alcohol sclerosing series has been tried or declined. Surgical candidates should understand that the goal is pain elimination at the cost of permanent numbness in the 3rd-4th toe webspace — this is not a complication but the expected result of nerve removal. In our practice, we reserve neurectomy for patients with neuromas above 6-7mm who have failed the full conservative ladder; outcomes are excellent (80-90% long-term satisfaction) in appropriately selected patients.

The Bottom Line

Morton’s neuroma and metatarsalgia share a neighborhood — the forefoot — but are different conditions requiring different treatment. The clinical separation is made at the examination table: Mulder’s click test, interspace vs metatarsal head palpation, and the character of the pain (electric/burning into toes = neuroma; dull/aching under bones = metatarsalgia). Getting this distinction right on the first visit determines whether the patient gets appropriate nerve-directed therapy or load redistribution — and avoids months of ineffective treatment. If you have forefoot pain that has not improved with rest, footwear changes, and over-the-counter insoles, the next step is a clinical evaluation by a podiatrist who can distinguish these conditions and begin targeted treatment.

Sources

1. Bhatia M, et al. “Morton’s neuroma.” J Bone Joint Surg Br. 1994.
2. Espinosa N, Brodsky JW, Maceira E. “Metatarsalgia.” J Am Acad Orthop Surg. 2010.
3. Mahadevan D, et al. “Diagnostic accuracy of clinical tests for Morton’s neuroma.” Foot Ankle Int. 2015.
4. Mulder JD. “The causative mechanism in Morton’s metatarsalgia.” J Bone Joint Surg Br. 1951.
5. Thomson CE, et al. “Interventions for the treatment of Morton’s neuroma.” Cochrane Database Syst Rev. 2004.

Frequently Asked Questions

In-Office Treatment at Balance Foot & Ankle

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