Burning or Numb Feet: Where to Start

Burning and numbness in the feet are nerve symptoms far more often than circulation symptoms. That is worth saying plainly, because the phrase most people reach for is poor circulation, and starting in the wrong place delays the tests that would actually find the cause.

Start with what the sensation is doing

Burning, tingling, pins and needles, an electric or crawling feeling, walking on gravel, numbness, or a sock that is not there — these are all what damaged or irritated sensory nerves produce. Reduced arterial supply produces something different: aching or cramping in the muscle brought on by walking a predictable distance and relieved by standing still, and, when it is advanced, pain in the forefoot at rest that is worse lying flat.

The two do overlap, and plenty of people have both at once — diabetes causes nerve damage and arterial disease through the same years of exposure. But the starting question is not which one it is. The starting question is what pattern the symptom follows.

The pattern usually tells you more than the symptom

Causes worth knowing about

Diabetes and prediabetes are the most common cause in the United States, and nerve damage often begins before blood sugar is high enough for a diabetes diagnosis. B12 deficiency is the cause most worth finding, because it is treatable and it is easy to miss — long-term metformin, acid-reducing medicines, weight-loss surgery, heavy alcohol use and plant-only diets all lower it. Thyroid disease, kidney disease, chemotherapy, several common medicines, and a number of autoimmune and inherited conditions account for much of the rest. In a meaningful share of cases no cause is ever found, which is frustrating but does not change the care of the feet.

What to check yourself

1. Both feet or one? Both, symmetric, starting at the toes is the classic neuropathy pattern. One foot alone points somewhere more local.
2. What makes it better? Getting up and walking, or hanging the foot down? That single question separates two very different problems.
3. Does walking bring on calf cramping at a set distance? If so, the arteries need checking regardless of what the burning is doing.
4. Look at both feet every day, including between the toes and the soles. Use a mirror or your phone camera. A foot that cannot feel an injury will not tell you about one.
5. Check your shoes before putting them on. Stones, folded socks and small objects cause a surprising number of the wounds seen in numb feet.
6. Write down your medicines. Bring the list, not a summary — several common ones are relevant.

What a clinician will do

Test sensation with a monofilament and a tuning fork, check reflexes and strength, look at the skin, and feel the pulses in both feet. Blood tests usually include HbA1c or a glucose tolerance test, vitamin B12, thyroid function, kidney function and a full blood count. An ankle-brachial index is added when the history or the pulses raise the arterial question. Nerve conduction studies are not needed in most straightforward cases, and are reserved for asymmetric, rapidly progressing or unclear pictures.

What actually helps

• Treating the cause where there is one. Blood sugar control slows progression, and correcting a B12 deficiency can reverse symptoms if it is caught early enough.
• Medicines aimed at nerve pain rather than ordinary painkillers. Several work reasonably well; they are prescription decisions and they take weeks to judge.
• Protecting the foot. Well-fitted shoes with room at the toes, daily inspection, and prompt attention to any break in the skin. Daily foot care.
• Stopping smoking, which is one of the few things that helps both the nerves and the arteries. More.
• Movement. Regular walking helps symptoms, balance and circulation, and reduces falls — which matter more than most people expect when sensation is reduced.

Common questions

Is burning in my feet a sign of poor circulation?

Usually not. Burning and tingling are nerve symptoms, and the most common cause is a polyneuropathy affecting both feet. Reduced arterial supply more typically causes cramping in the calf on walking, or, when advanced, pain in the forefoot at rest that improves when the foot hangs down. If you have that second pattern, the arteries do need checking. The full comparison.

Why are my feet worse at night?

Neuropathic symptoms genuinely intensify at night — there is less to distract from them, skin temperature rises under the covers, and the nerves themselves are more active. What matters is what relieves it. Getting up and walking helps neuropathy. Hanging the foot over the edge of the bed helps arterial rest pain, because gravity assists a supply that is not adequate lying flat. If it is the second, make an appointment rather than waiting.

Can this be fixed?

Sometimes. Deficiency-related neuropathy can improve substantially when the deficiency is corrected, and symptoms often settle when a causative medicine is changed. Longstanding diabetic nerve damage is usually not reversed, but progression can be slowed and symptoms can be managed well. Finding the cause is the part that decides which of those you are in, which is the argument for getting it looked at rather than living with it.

My feet feel cold but they are warm when someone touches them. What is that?

That is a nerve symptom, not a blood flow one. Damaged sensory nerves misreport temperature, so the sensation is entirely real while the foot is objectively warm. It usually travels with other neuropathy findings. More on cold feet.

Should I still get my circulation checked?

Worth doing if you smoke or have smoked, have diabetes or kidney disease, are over 65, get calf cramping on walking, have a wound that is not healing, or have weak foot pulses. The ankle-brachial index takes about fifteen minutes and settles the question. It is not the first test for burning feet, but in these situations it belongs in the same visit.

Written by Tom Biernacki, DPM, FACFAS. Published 21 September 2026. General education, not medical advice.