Feels Like a Pebble Under Your Foot? Understanding Morton’s Neuroma

Why does it feel like there is a stone in your shoe?

A pebble-like sensation beneath the ball of the foot, sometimes with burning or shooting pain into the toes, can occur with Morton’s neuroma. You might check your shoe and find nothing there.

This sensation does not confirm the diagnosis. Other causes of forefoot pain, including irritation of a nearby bursa, joint problems or a bone stress injury, may need consideration.

What is Morton’s neuroma?

Morton’s neuroma describes irritation and thickening around a small nerve passing between the metatarsal bones in the forefoot. Despite the name, it is not a nerve tumour.

It commonly affects the space between the third and fourth toes, and can also occur between the second and third toes. There may be no visible lump when you look at the foot.

What symptoms might you notice?

• A feeling of walking on a pebble, lump or folded sock.
• Burning, stabbing or shooting forefoot pain.
• Tingling or numbness extending towards the toes.
• Symptoms aggravated by standing, walking or tight footwear.

Symptoms can fluctuate. Taking shoes off or reducing pressure may help temporarily, but repeated or worsening pain deserves assessment.

What can contribute to the problem?

Pressure and repeated irritation around the nerve may be relevant. Narrow footwear, high heels and activities that repeatedly load the forefoot can aggravate symptoms.

Foot shape and other foot problems may also influence loading. These factors do not mean every person with a particular arch type will develop a neuroma, or that footwear alone explains every case.

Bring your usual shoes to the appointment so the clinician can consider how they fit and where they place pressure.

How is it diagnosed?

Your clinician asks about your symptoms and examines the foot, including sensation, tenderness and the area between the metatarsal bones.

Will you need an ultrasound?

Diagnosis is often clinical. Ultrasound may help in selected cases, including before an injection or surgical referral. Findings must be matched to symptoms rather than treated as a diagnosis on their own.

Other investigations may be considered if another cause is suspected. A local anaesthetic response may provide information, but temporary relief is not a stand-alone guarantee of the diagnosis.

What can help without an injection?

Pad position and shoe space matter. A clinician can help select an appropriate device; custom orthotics are not automatically required.

Ask a pharmacist or clinician about pain relief suitable for you. Medication may ease discomfort but does not replace assessment when symptoms persist.

Our orthotic options guide explains the different pathways available at the clinic.

When might an ultrasound-guided injection help?

A corticosteroid injection, sometimes with local anaesthetic, may be discussed if footwear changes and other initial care have not helped enough. The aim is to reduce symptoms; benefit and duration vary.

Ultrasound can help guide placement around the intended target. It does not guarantee immediate or lasting relief and does not eliminate procedural risks.

• Ask what medicine is proposed and why.
• Discuss infection, bleeding, pain flare and possible skin or fat-pad changes.
• Tell the clinician about allergies, diabetes, other health conditions and all medicines.
• Agree aftercare and when the response will be reviewed.

Repeated injections are not automatically the next step if symptoms continue. The diagnosis, response and risks should be reconsidered.

When is surgery considered?

If symptoms remain troublesome despite appropriate non-surgical care, a foot and ankle specialist may discuss surgery. The procedure depends on the individual situation and may involve releasing pressure or removing the affected nerve segment.

Nerve removal causes permanent numbness in its distribution. Persistent pain and other complications are possible, so the benefits and risks need a full discussion.

Recovery depends on the operation and your circumstances. Follow the surgeon’s instructions rather than assuming a fixed period on crutches or a universal six-week recovery.

What about radiofrequency ablation?

NICE describes limited evidence of effectiveness and recommends special arrangements for consent, governance and outcome review. It should not be presented as a proven routine substitute for all other options.

When should you contact a clinician?

Arrange assessment for severe, recurrent or worsening forefoot pain, symptoms limiting daily activity, or tingling, weakness or numbness. Do not keep changing insoles indefinitely without checking the cause.

If symptoms are not improving after a short trial of self-care, seek advice. Foot pain after a recent injury or operation also needs assessment.