Pain between the toes usually comes from one of a handful common causes: a fungal infection, a nerve problem, soft corns from friction, or footwear that’s too narrow. The location and type of pain, whether it burns, itches, or feels like stepping on a pebble, points strongly toward the cause.
Athlete’s Foot
The most common reason for irritation between the toes is athlete’s foot, a fungal infection that thrives in the warm, moist skin of the toe web spaces. The telltale signs are scaly, peeling, or cracked skin between the toes, along with itching that tends to flare right after you take off your socks and shoes. You may also notice burning, stinging, or small blisters. The skin can look red, purple, or gray depending on your skin tone, and it often appears swollen.
The fungi responsible (called dermatophytes, the same group behind ringworm and jock itch) spread easily in locker rooms, pool decks, and shared showers. Keeping the spaces between your toes dry is the single most effective prevention strategy, and it’s also the first line of treatment. Over-the-counter antifungal creams or sprays typically clear a mild case within a few weeks. If the skin is deeply cracked or the infection keeps returning, a stronger prescription treatment may be needed.
Morton’s Neuroma
If the pain feels like burning, tingling, or numbness radiating into two adjacent toes, the likely culprit is Morton’s neuroma. This is a thickening of tissue around a nerve in the ball of the foot, most often between the third and fourth toes. More than half of people with the condition describe the sensation as having a pebble in their shoe or a bunched-up sock under the ball of the foot.
The pain is typically worse when walking, running, or wearing tight or heeled shoes, and it improves when you rest or take your shoes off. In early stages, that relief is almost immediate. In chronic cases, the pain can become constant: about 25% of people with Morton’s neuroma report pain at rest and at night. Women are affected more often, likely because of higher rates of narrow, heeled footwear use.
A clinician can often diagnose this in the office by squeezing the metatarsal bones together while flexing the foot upward. An audible click during that maneuver is a strong indicator. Treatment usually starts with wider shoes, metatarsal pads, or cushioned insoles, and may progress to injections or, rarely, surgery if conservative measures don’t help.
Soft Corns
Hard corns form on the tops of toes or the outer edge of the little toe, but soft corns form specifically between the toes. They develop from repeated friction and pressure, usually when two toe bones rub against each other inside a shoe that’s too tight. The moisture between the toes keeps the corn soft and rubbery rather than hard, which can make it surprisingly painful.
Soft corns look like small, whitish, raised patches of skin. They’re smaller and deeper than calluses, with a firm center surrounded by swollen skin. The fix is straightforward: reduce the friction. Toe spacers placed between the affected toes can relieve pressure immediately, and switching to shoes with a roomier toe box prevents recurrence. Avoid cutting or shaving corns yourself, as this can lead to infection, especially if you have diabetes or poor circulation.
Capsulitis
Capsulitis is inflammation of the ligaments that form a capsule around a toe joint, most commonly at the base of the second toe. It causes pain on the ball of the foot that can radiate into the space between toes, along with swelling at the base of the affected toe. People often describe it as feeling like there’s a marble under the foot. This condition develops gradually from repetitive stress, and it’s easy to confuse with Morton’s neuroma because the pain overlaps in location. The key difference is that capsulitis pain is more localized to the joint itself and worsens with direct pressure on the ball of the foot, while neuroma pain tends to radiate and tingle into the toes.
Diabetic Neuropathy
Burning or tingling pain between the toes that isn’t explained by visible skin changes or footwear problems can be an early sign of peripheral neuropathy, particularly in people with diabetes. The nerve fibers that carry pain and temperature signals are especially vulnerable to the metabolic damage diabetes causes, and they’re the first to be affected. Symptoms almost always start at the tips of the toes and gradually spread backward toward the ankle in what’s called a stocking pattern.
Early neuropathy can feel like burning, pins and needles, or an unusual sensitivity to touch in the toes. Over time, it may progress to numbness. Because the sensory nerves in the feet sit outside the blood-brain barrier, they’re more exposed to injury from high blood sugar than the motor nerves that control movement. This is why pain and altered sensation show up long before any muscle weakness. If you have diabetes (or prediabetes) and notice new burning or tingling in your toes, it’s worth having your nerve function evaluated.
How Footwear Plays a Role
Narrow shoes are a common thread across several of these conditions. A pointed or narrow toe box compresses the metatarsal bones together, which squeezes the nerves running between them and pushes toe bones into each other. Research on forefoot pressure shows that shoes with a round, wide toe box significantly reduce pressure on the inner forefoot compared to pointed or square designs. For women especially, who are more likely to wear narrow-toed shoes, this is one of the most impactful changes you can make.
That said, simply switching to wider shoes isn’t always enough on its own. Studies show that reducing forefoot pressure often requires a combined approach: appropriate shoe width plus supportive insoles or toe spacers, and sometimes exercises to strengthen the small muscles of the foot. If your pain has been building for months, a shoe swap alone may not fully resolve it.
Toe Spacers and Other Simple Fixes
Silicone toe spacers are inexpensive and surprisingly effective for several causes of interdigital pain. They work by creating physical space between the toes, which reduces nerve compression, prevents soft corn friction, and helps keep the web spaces dry (reducing fungal growth). For interdigital infections specifically, maintaining dryness between the toes by keeping them apart is considered the primary treatment approach.
For alignment-related pain, the evidence is encouraging. In one study, patients using a custom insole with a built-in toe separator saw their pain scores drop from about 4 out of 10 to less than 1 out of 10 immediately, and that improvement held at three months. When toe separators are combined with foot exercises and joint mobilization, studies show significant improvements in pain, grip strength, and range of motion at both 3 months and 1 year.
Signs That Need Professional Evaluation
Most between-the-toe pain responds to simple changes like better shoes, keeping feet dry, or using spacers. But certain patterns warrant a visit to a podiatrist or your primary care provider:
- Pain lasting more than a few days that gets worse or makes it hard to walk normally
- Numbness or persistent tingling in the toes, especially if it’s symmetrical in both feet
- Open sores or cracked skin that won’t heal, which can signal infection or circulation problems
- Visible changes in toe alignment, such as a toe drifting to one side or crossing over its neighbor
- Swelling that doesn’t improve with rest and elevation
Sudden, severe pain after an injury also calls for prompt evaluation to rule out a stress fracture or ligament tear in the small joints of the forefoot.