Burning feet most often comes from nerve damage, a condition called peripheral neuropathy. Diabetes is the single most common cause, but vitamin deficiencies, alcohol use, infections, and even poorly fitting shoes can trigger that same uncomfortable heat. The sensation can range from mild warmth to intense, searing pain, and it often gets worse at night.
Nerve Damage From Diabetes
Diabetic neuropathy is the leading cause of burning feet worldwide, affecting up to half of all people with diabetes. Chronically high blood sugar damages nerves in two ways: it directly interferes with the nerves’ ability to send signals, and it weakens the tiny blood vessels that deliver oxygen and nutrients to those nerves. The result is a slow, progressive breakdown of sensation that typically starts in the feet and works its way upward toward the legs, and eventually the hands.
The burning usually develops gradually over months or years. You might first notice tingling or numbness in your toes, then a persistent warmth or stinging across the soles of your feet. Many people describe it as standing on hot pavement. The symptoms tend to intensify at night, making sleep difficult. If you have diabetes and haven’t had your feet checked recently, this is the most likely explanation for that burning sensation.
Vitamin B12 Deficiency
Your nerves need B12 to maintain their protective coating. When levels drop too low, the nerves in your feet are among the first to suffer. What makes B12 deficiency tricky is that standard lab ranges may not tell the whole story. The clinical cutoff for deficiency is set relatively low, but research published in the journal Neurology found that optimal nerve function in older adults required B12 levels roughly 2.7 times higher than that clinical cutoff. In other words, your blood work could come back “normal” while your nerves are already struggling.
People at higher risk for B12 deficiency include vegans and vegetarians (since B12 comes primarily from animal products), adults over 60 (who absorb it less efficiently), and anyone taking long-term acid-reducing medications. The good news is that catching it early often means the nerve damage can be slowed or partially reversed with supplementation.
Athlete’s Foot
Not all burning feet involves nerve damage. Athlete’s foot, a common fungal infection, causes burning, stinging, and itching between your toes and across the soles. The key difference from neuropathy is what you can see: athlete’s foot typically produces visible changes like peeling, cracking, or reddened skin, especially between the toes. The burning tends to come with itchiness rather than numbness.
Fungi thrive in warm, moist environments, so sweaty shoes and damp socks create ideal conditions. Over-the-counter antifungal creams clear most cases within a few weeks. If you have both visible skin changes and a deeper burning or numbness, the two conditions can overlap, particularly in people with diabetes.
Alcohol-Related Nerve Damage
Heavy, long-term alcohol use can cause its own form of peripheral neuropathy. The damage comes from a combination of alcohol directly poisoning the nerves and the nutritional deficiencies that often accompany heavy drinking. Chronic alcohol use depletes B vitamins and other nutrients essential for nerve health, compounding the problem. The burning and tingling follow a similar pattern to diabetic neuropathy, starting in the feet and moving upward over time.
Tarsal Tunnel Syndrome
Sometimes burning feet has a structural cause rather than a systemic one. Tarsal tunnel syndrome occurs when the tibial nerve gets compressed as it passes through a narrow passage in your ankle made up of bones and ligaments. Think of it as carpal tunnel syndrome, but in your foot. The compression produces burning, tingling, or shooting pain along the sole.
This condition is more common in people who stand for long hours, runners, or anyone with flat feet or ankle injuries that change the shape of the tunnel. To check for it, a doctor will tap gently over the nerve at your inner ankle. If that reproduces your burning or tingling, it points toward tarsal tunnel as the source.
Erythromelalgia
A less common but distinctive cause of burning feet is erythromelalgia, a condition marked by three symptoms occurring together: burning pain, redness, and increased skin temperature in the affected area. Unlike neuropathy, erythromelalgia comes in flares rather than being constant. Flares are triggered by anything that raises your body temperature: exercise, warm rooms, stress, spicy food, alcohol, caffeine, or even dehydration. Cooling the feet brings relief, and between episodes the feet may feel completely normal.
How Neuropathy Burning Differs From Other Causes
Nerve-related burning has a distinct profile. It typically worsens at night, involves numbness or a “pins and needles” feeling alongside the heat, and may come with a sensation of heaviness or dull aching in the feet. You might also notice sharp, stabbing pains or feel like you’re walking on pebbles. Over time, you may start losing sensation in your toes entirely, which creates its own danger since you can injure your foot without realizing it.
Skin-related causes like athlete’s foot produce visible changes and itching. Structural causes like tarsal tunnel tend to affect specific areas of the foot rather than both feet symmetrically. Erythromelalgia causes visible redness and warmth that you can actually feel with your hand. These distinctions can help you narrow down what’s going on before you see a doctor.
Managing the Burning at Home
Warm foot soaks before bed can ease burning from neuropathy. Research on diabetic neuropathy found that soaking feet in comfortably warm water (roughly 104 to 113°F) for 15 minutes nightly reduced pain. Avoid extremes: very hot water can scald feet that have reduced sensation, and ice-cold water can cause tissue damage when you can’t feel the warning signs of frostbite. If you have diabetes or known nerve damage, always test water temperature with your hand or a thermometer first.
Other practical steps that help: wear breathable shoes and moisture-wicking socks to reduce fungal risk, elevate your feet at night if they feel congested, and avoid standing for extended periods without breaks. For erythromelalgia specifically, keeping your environment cool and staying hydrated can reduce the frequency of flares.
Medical Treatment for Nerve Pain
When burning feet stems from nerve damage, treatment focuses on managing the pain and addressing the underlying cause. For diabetic neuropathy, tighter blood sugar control slows the progression. For B12 deficiency, supplementation can help restore nerve function if caught before the damage becomes permanent.
For the burning itself, doctors typically prescribe medications originally developed for other conditions but effective against nerve pain. These fall into two main categories: anticonvulsants that calm overactive nerve signals, and certain antidepressants that alter how your brain processes pain. Both classes can significantly reduce burning and tingling, though they work best as part of a broader plan that includes managing the root cause. Finding the right medication and dose often takes some trial and error, so expect a period of adjustment.
Warning Signs That Need Attention
Burning feet that comes on suddenly, especially after possible exposure to a toxin or new medication, warrants urgent care. The same goes for any open wound on a burning foot that shows signs of infection (redness spreading from the wound, warmth, discharge), particularly if you have diabetes.
Schedule a visit with your doctor if the burning has persisted for several weeks despite home care, if the pain is intensifying, if the sensation is spreading up into your legs, or if you’re starting to lose feeling in your toes or feet. Progressive numbness is especially important to address because it signals ongoing nerve damage that may become irreversible without treatment.