
By Dr. Kayla Wright, DPM
The distinction sounds semantic until treatment fails because the wrong structure is being targeted.
The quickest comparison
| Feature | Morton’s neuroma | Mechanical metatarsalgia |
|---|---|---|
| What it is | Irritated/enlarged interdigital nerve | Umbrella term for ball-of-foot pain, often from excess pressure/loading |
| Typical location | Commonly between 3rd and 4th metatarsals | Under one or more metatarsal heads |
| Pain quality | Burning, electric, shooting | Aching, bruised, pressure-like |
| Toe symptoms | Tingling/numbness may radiate into toes | Usually less nerve-like unless another condition coexists |
| “Pebble” sensation | Common | Can also occur |
| Tight shoes | Often aggravating | Can aggravate by increasing forefoot pressure |
| Exam focus | Interspace/nerve provocation | Metatarsal heads, joints, plantar plate, mechanics |
This table is a starting point. Real patients do not always follow textbook columns.
What Morton’s neuroma actually is
Morton’s neuroma is not a cancerous tumor. It is a painful enlargement and degenerative/fibrotic change involving a common digital nerve in the forefoot, most commonly the third intermetatarsal space.
Symptoms often include:
- sharp or burning pain in the forefoot
- tingling or numbness into adjacent toes
- an electrical sensation
- a folded-sock, marble, or pebble feeling
- worsening in tight or high-heeled shoes
- improvement after taking the shoe off or massaging the foot
A 2026 StatPearls review characterizes Morton neuroma as a compressive neuropathy that must be differentiated from stress fracture, plantar plate injury, arthritis, bursitis, peripheral neuropathy, and other causes of metatarsalgia.
What “metatarsalgia” actually means
Metatarsalgia describes pain in the region of the metatarsal heads—the ball of the foot.
It can result from multiple problems, including:
- repetitive forefoot overload
- poorly fitting or high-heeled shoes
- bunion or hammertoe mechanics
- long or relatively overloaded metatarsals
- plantar plate injury
- stress fracture
- arthritis
- fat-pad changes
- Morton’s neuroma
This is why “metatarsalgia” can be a useful description but an incomplete final diagnosis.
If treatment repeatedly consists of adding cushioning without asking why that metatarsal region is overloaded, the underlying driver may remain untreated.
Symptom clue #1: burning and tingling favor nerve involvement
Neuroma becomes more likely when pain has a neurological quality:
- burning
- tingling
- numbness
- electric shocks
- radiation into the toes
A broad pressure ache without toe symptoms is less characteristic of neuroma, although symptoms vary and coexistence is possible.
Symptom clue #2: exact location matters
Morton’s neuroma most commonly occurs between the third and fourth metatarsals.
Mechanical metatarsalgia may be felt:
- directly under the second metatarsal head
- across several metatarsal heads
- under an area of callus
- where another deformity transfers pressure
Pain directly under the second toe joint, especially with swelling or toe drift, should raise the possibility of plantar plate injury rather than simply being labeled “metatarsalgia.”
Symptom clue #3: a “pebble” feeling does not settle the diagnosis
The famous neuroma description is “walking on a pebble.” It is useful—but not exclusive.
Patients with metatarsal overload, plantar plate pathology, skin lesions, or other focal forefoot problems may use the same language.
For a broader differential, see Why Does It Feel Like There's a Pebble Under My Foot?.
How the exam differs
For suspected Morton’s neuroma, examination focuses on:
- the symptomatic interspace
- reproduction of nerve-type symptoms
- forefoot compression
- sensory symptoms into adjacent toes
- footwear-related compression
For suspected mechanical metatarsalgia, examination may focus more on:
- individual metatarsal-head tenderness
- callus distribution
- lesser-toe alignment
- plantar plate stability
- big-toe function
- bunion/hammertoe mechanics
- arch and forefoot loading
The distinction is often made clinically, but imaging can be useful when findings are atypical or another diagnosis needs to be excluded.
What imaging can—and cannot—tell you
X-rays
Weight-bearing X-rays are useful for evaluating:
- metatarsal alignment
- fracture
- arthritis
- bunions or lesser-toe deformity
- other bone/joint causes of forefoot pain
They do not directly show the nerve well.
Ultrasound
Ultrasound can evaluate Morton’s neuroma and intermetatarsal bursitis and can be useful dynamically.
MRI
MRI may be used when the diagnosis remains unclear or when plantar plate injury, stress injury, soft-tissue lesions, or other pathology needs evaluation.
An important principle: an imaging finding is not automatically the pain generator. Neuroma-like enlargement can be detected in some asymptomatic feet, so imaging should match the patient's symptom location and exam.
Treatment overlap—and where it separates
Both conditions may improve with reducing excessive forefoot pressure:
- wider toe-box footwear
- lower heels
- activity/load modification
- appropriate cushioning or metatarsal offloading
But the details matter.
For Morton’s neuroma
Treatment may include:
- footwear that reduces intermetatarsal compression
- properly positioned metatarsal pads
- selected orthotic modifications
- corticosteroid injection in some patients
- other interventional treatments or surgery for persistent cases after appropriate evaluation
Systematic reviews show corticosteroid injections can provide pain relief for many patients, but the effect may be temporary and evidence quality varies. More invasive options should be discussed in the context of diagnosis, symptom duration, prior treatment, and risks.
For mechanical metatarsalgia
Treatment focuses on the cause of excess metatarsal loading, which may require:
- footwear changes
- metatarsal offloading
- orthotic modification
- treatment of callus
- addressing a bunion or hammertoe contribution
- rehabilitation
- plantar plate treatment if instability is present
- load restriction if stress injury is suspected
Simply injecting the painful area without determining the cause is not an interchangeable treatment strategy.
The plantar plate is an important third category
A plantar plate injury can mimic both neuroma and generic metatarsalgia.
A 2025 review describes plantar plate injury as frequently underdiagnosed, most often affecting the second lesser metatarsophalangeal joint. Symptoms can include localized plantar pain, swelling, instability, and progressive toe deviation.
Useful clues include:
- pain directly beneath the second toe joint
- swelling around that joint
- the second toe beginning to drift or elevate
- pain with toe-joint loading
This is one reason persistent “metatarsalgia” deserves localization rather than indefinite generic treatment.
A decision framework for ball-of-foot pain
Burning/tingling + toe radiation + interspace pain → neuroma becomes more likely.
Broad bruised ache directly under metatarsal heads → mechanical metatarsalgia/overload becomes more likely.
Second-toe-joint pain + swelling or toe drift → plantar plate pathology moves higher.
Focal bone pain after training increase → stress injury needs consideration.
Visible hard skin lesion → callus/wart/skin cause should be assessed.
The value of an examination is not simply naming the pain; it is deciding which structure should actually be treated.
Frequently asked questions
Can Morton’s neuroma and metatarsalgia occur together?
Yes. Because metatarsalgia is a broad term for forefoot pain, a person with Morton’s neuroma can also have metatarsalgia. Mechanical overload and nerve irritation can also coexist.
Does a positive squeeze or click prove Morton’s neuroma?
No single maneuver should be interpreted in isolation. Reproducing typical symptoms in the correct location supports the diagnosis, but the full history, exam, and sometimes imaging are more reliable than one test alone.
Is numbness normal with metatarsalgia?
Numbness and tingling suggest nerve involvement and should prompt consideration of Morton’s neuroma or another neurological cause rather than assuming purely mechanical metatarsal overload.
Do both conditions need custom orthotics?
No. Some patients benefit from targeted pads or orthotic modifications, while others improve with footwear changes alone. The device should be selected to solve the identified pressure or compression problem.
When should ball-of-foot pain be evaluated?
Persistent pain, numbness, progressive toe deformity, swelling, focal bone tenderness, inability to walk normally, or symptoms that recur despite appropriate footwear changes are good reasons for evaluation.
Forefoot and neuroma evaluation in Tempe
If “metatarsalgia” has become a catch-all label and the pain keeps returning, the next step is to localize the problem: nerve, metatarsal head, plantar plate, bone, skin—or more than one structure.
Metro Foot & Ankle evaluates Morton’s neuroma and other neuromas and other causes of forefoot pain in Tempe and the East Valley. If burning, numbness, pebble-like pressure, or persistent ball-of-foot pain is limiting activity, request an evaluation.
This article is for general educational purposes and does not replace individualized medical advice, diagnosis, or treatment.
Sources
- Dixon M, Munir U, Tafti D. Morton Neuroma. StatPearls. Updated July 5, 2026. https://www.ncbi.nlm.nih.gov/books/NBK470249/ (opens in a new tab)
- Mayo Clinic. Morton neuroma: Symptoms and causes. Updated November 3, 2025. https://www.mayoclinic.org/diseases-conditions/mortons-neuroma/symptoms-causes/syc-20351935 (opens in a new tab)
- Mayo Clinic. Morton neuroma: Diagnosis and treatment. Updated November 3, 2025. https://www.mayoclinic.org/diseases-conditions/mortons-neuroma/diagnosis-treatment/drc-20351939 (opens in a new tab)
- Mayo Clinic. Metatarsalgia: Symptoms and causes. https://www.mayoclinic.org/diseases-conditions/metatarsalgia/symptoms-causes/syc-20354790 (opens in a new tab)
- Diagnosing Plantar Plate Injuries: A Narrative Review of Clinical and Imaging Approaches. Diagnostics. 2025;15(17):2188. https://pmc.ncbi.nlm.nih.gov/articles/PMC12427879/ (opens in a new tab)
- Choi JY, Lee HI, et al. Corticosteroid Injection for Morton's Interdigital Neuroma: A Systematic Review. Clinics in Orthopedic Surgery. 2021;13(2). https://pubmed.ncbi.nlm.nih.gov/34094019/ (opens in a new tab)
