Morton's neuroma feels like a pebble, a wadded-up sock, or a fold in your sock trapped under the ball of your foot — but there's nothing actually there. What you're feeling is a nerve between your toes that has become thickened and irritated, usually from being squeezed. It most often shows up between the third and fourth toes, and it tends to flare in tight shoes and settle when you slip them off and rub the spot.
Here's the reassuring part: a neuroma is a soft-tissue nerve problem, not a broken bone or a tumor, and most people improve without surgery once the pressure on the nerve is relieved. The catch is that "just tight shoes" is rarely the whole story, and forefoot pain has several look-alikes. Sorting out which one you have is what points you toward relief that lasts.
What a Morton's neuroma actually is
The name is a little misleading. A Morton's neuroma is not a growth in the usual sense — it's a small nerve that runs between the long bones of your foot (the metatarsals) toward your toes, and over time it becomes thickened and inflamed where it gets pinched. The medical term is an interdigital or intermetatarsal neuroma, "interdigital" simply meaning "between the toes."
The classic location is the space between the third and fourth toes, though it can form between the second and third as well. That third space is vulnerable because two branches of nerve meet there and the gap between the bones narrows when the front of the foot is compressed. Every step in a shoe that crowds the toes presses those metatarsal heads together, and the nerve caught in the middle takes the squeeze. Repeat that thousands of times a day and the nerve responds the only way it can — it swells and gets touchy.
What it feels like — and exactly where
The hallmark is that phantom pebble. People describe standing on a marble, a bunched sock, or a lump that they can never quite find when they take the shoe off. Alongside it, most people notice one or more of these:
- Burning or sharp pain in the ball of the foot that shoots toward the toes
- Tingling, numbness, or a "pins and needles" feeling in the two toes the nerve serves
- Pain that worsens in narrow, stiff, or high-heeled shoes and eases when you go barefoot
- Relief from stopping, sitting down, and massaging the front of the foot
- A sense that you need to take your shoe off mid-day to "reset" your foot
Unlike an injury, a neuroma usually builds slowly and comes and goes at first, showing up on the days you wore the wrong shoes or walked the farthest. There's typically no bruising, no swelling you can see, and no single moment you can point to when it started. That gradual, activity-linked pattern is a strong clue.
Why it happens and who tends to get it
Anything that crowds or repeatedly loads the front of the foot can set a neuroma in motion. Footwear is the usual suspect — narrow toe boxes, pointed dress shoes, and high heels all shove the metatarsal heads together and tip your weight onto the ball of the foot. That's part of why the condition is diagnosed more often in women than in men.
Footwear isn't the whole picture, though. Foot shape and mechanics matter just as much:
- High arches or flat feet, which change how load spreads across the forefoot
- Bunions and hammertoes, which crowd the neighboring toes and shift pressure onto the nerve — problems we treat alongside bunion correction
- High-impact activity like running, court sports, and long hikes on Utah's hard-packed trails, which pound the ball of the foot
- Tight calves, which push more of your body weight forward onto the forefoot with every stride
Most of the time it's a combination — a foot that already loads the forefoot heavily, put into a shoe that squeezes it, and asked to cover a lot of miles. That's why treatment works best when it addresses more than one of those factors at once.
Morton's neuroma vs. other ball-of-foot pain
The ball of the foot is a busy neighborhood, and several conditions there feel similar at first. Getting the diagnosis right matters, because the fixes are different. A few of the common look-alikes:
- Metatarsalgia is a general term for pain and inflammation under the metatarsal heads. It tends to feel like a deep bruise across the ball of the foot rather than a nerve zinging into two specific toes.
- Capsulitis — inflammation of the joint capsule at the base of a toe, often the second — usually pinpoints to one joint and can make the toe start to drift, which a neuroma doesn't do.
- A metatarsal stress fracture causes pain over the bone itself that hurts when you press directly on it, and it's linked to a recent jump in mileage or training.
- Nerve compression higher up, such as tarsal tunnel syndrome at the inner ankle, can also cause burning and tingling in the foot. We explain how that different nerve gets pinched in our guide to tarsal tunnel syndrome and nerve entrapment. The location of the trapped nerve is what separates the two.
Because these overlap, treating yourself based on an online guess can send you down the wrong path for weeks. A short in-person exam usually settles which one it is.
How we confirm it's a neuroma
Diagnosing a Morton's neuroma is mostly a hands-on process, and an experienced foot and ankle physician can often identify it in the exam room. We'll ask about your shoes, your activity, and exactly where and when the pain shows up, then examine the foot for a few telltale signs.
One of the most useful is Mulder's sign: gently squeezing the sides of the foot together while pressing on the sore space often reproduces the pain and, in many cases, produces a small click as the thickened nerve slips between the bones. Pressing between the affected toes may recreate that electric, shooting sensation into the toes. When the picture is clear, no imaging is needed. When it isn't — or when we want to rule out a stress fracture, capsulitis, or another cause — an ultrasound or MRI can look directly at the nerve and the surrounding tissue. Ultrasound has the advantage of showing the nerve while we adjust the pressure on the foot in real time.
What actually relieves it
Most people with a neuroma get better with conservative care aimed at one goal: take the pressure off the nerve so it can calm down. We usually start with the changes that give the fastest relief and build from there.
- Roomier shoes. A wide, deep toe box and a low heel are the single most effective change for many patients. Stiff, pointed, or elevated shoes do the opposite.
- Metatarsal pads. A small dome-shaped pad placed just behind the ball of the foot spreads the metatarsal heads apart and lifts pressure off the nerve. Where it sits matters, so having it placed correctly makes the difference.
- Custom orthotics. When foot shape or mechanics are driving the problem, custom orthotics can offload the forefoot and correct how weight travels through your foot in a way an over-the-counter insert usually can't.
- Activity and load changes. Easing off high-impact miles for a while, stretching tight calves, and swapping in lower-impact cross-training gives an irritated nerve room to settle.
- Anti-inflammatory measures. Ice after activity and, when appropriate, medication can quiet a flare while the other changes take hold.
Give these an honest trial. It often takes several weeks of consistent shoe and padding changes before the nerve quiets down, and stacking two or three of these together works better than any one alone.
When injections and surgery come into the picture
If footwear, padding, and orthotics haven't done enough, there are still several steps before open surgery. A corticosteroid injection can reduce the inflammation around the nerve and, for some people, calm the pain long enough for the conservative changes to catch up. Other in-office options, such as alcohol sclerosing injections that gradually deaden the irritated nerve, may be considered depending on your situation.
Surgery is reserved for neuromas that stay painful despite a genuine trial of everything else. The most common procedure removes the affected segment of nerve or releases the tight ligament pressing on it; because a small patch of numbness between the toes can follow, it's a decision your surgeon will walk through with you individually. Recovery timelines vary from person to person and are best confirmed by the surgeon who knows your foot. The encouraging news is that most people never reach this point — the majority settle down with conservative care.
When to see a podiatrist — and the red flags
See a foot and ankle specialist if forefoot pain lasts more than a few weeks, keeps returning whenever you're active, or has you changing how you walk or which shoes you'll wear. The earlier a neuroma is addressed, the more likely simple measures will resolve it, and the less chance the nerve has to become chronically sensitive.
Some symptoms shouldn't wait for a routine visit. Seek prompt or urgent care if you notice a spreading area of redness or warmth, fever alongside foot pain, a wound on the foot that won't heal, or a sudden loss of sensation or inability to bear weight — especially if you have diabetes or poor circulation, where a small foot problem can turn serious quickly. Those signs point to something other than a simple neuroma and need to be looked at right away.
If that pebble-under-the-ball feeling has become a daily companion, you don't have to keep working around it. You can request an appointment at our Farmington or South Ogden office, and for questions about coverage or what a visit involves, our insurance and payment page and front desk can help.
Medically reviewed by the board-certified physicians at Wasatch Foot & Ankle Institute — Dr. Jason Campbell, DPM, MHA, AACFAS, Dr. Colby Frost, DPM, MHA, FACFAS, Dr. Mark Woolley, DPM, FACFAS, Dr. Chantel Murrah, DPM, MHA, MPH, MBA, PhD. Our board-certified, fellowship-trained podiatrists provide foot and ankle care in Farmington and South Ogden, Utah. This article is for general education and is not a substitute for an in-person evaluation.
Photo by Oswald Elsaboath on Unsplash