Healthy Feet
Almost everyone has had a foot "fall asleep". That short burst of pins and needles is harmless. Tingling or numbness that keeps coming back, or never quite goes away, is different: it is your nerves telling you something has changed.
Harmless, short-lived tingling
Sitting cross-legged, kneeling, or wearing tight boots presses on a nerve and briefly cuts its blood supply. When you move, the nerve wakes up with tingling that fades within minutes. Cold feet can also tingle as they warm. None of this needs treatment.
Causes of tingling that keeps coming back
| Cause | Typical clues |
|---|---|
| Diabetic neuropathy | Both feet, starts in the toes, slowly creeps up; worse at night |
| Vitamin B12 deficiency | Both feet, tiredness, pale skin, balance problems; more common after 60 or on metformin |
| Pinched nerve in the lower back (sciatica) | Usually one leg, with back or buttock pain shooting down the leg |
| Tarsal tunnel syndrome | One foot, inner ankle and sole, worse with standing |
| Morton's neuroma | Between the 3rd and 4th toes, like a pebble in the shoe |
| Peripheral artery disease | Cold, pale feet, calf pain when walking that eases with rest |
| Alcohol | Both feet, often with low B vitamins |
| Underactive thyroid or kidney disease | Both feet, with other symptoms such as fatigue or swelling |
| Medicines | Started after a new drug, such as some chemotherapy or antibiotics |
| Too much vitamin B6 | High-dose B6 supplements over months can cause numbness |
Warning signs: get help quickly
- Sudden numbness or weakness, especially on one side of the body, or with face drooping or trouble speaking: call emergency services (possible stroke).
- Numbness in the groin or saddle area, or new trouble controlling your bladder or bowels.
- Rapidly spreading weakness in both legs.
- A wound, blister or color change on a numb foot.
What your doctor may check
Expect questions about when the tingling started and where it is, a look at your feet, a test with a thin nylon filament (monofilament) or a tuning fork, and reflexes. Blood tests usually include glucose and HbA1c, vitamin B12, kidney, liver and thyroid function. Nerve conduction studies are used when the picture is unclear.
What helps
Treating the cause comes first: steady blood sugar, correcting B12, cutting back on alcohol, or physical therapy for a back problem. Day to day, regular walking, well-fitting shoes, and checking your feet every evening matter a lot when sensation is reduced. Some people add a nerve-comfort supplement; our comparison of two popular herbal formulas explains the options.
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Sources
- Numbness and tingling: MedlinePlus Medical Encyclopedia – NIH MedlinePlus
- Pins and needles – NHS
- Vitamin B6 - Consumer – NIH Office of Dietary Supplements
Keep reading
Burning feet at night
Neuropathy in the feet
Diabetic foot care checklistFrequently asked questions
Is tingling in the feet serious?
Brief tingling after sitting awkwardly is not. Tingling that keeps returning, affects both feet, or comes with numbness or weakness should be checked by a doctor, because common causes like diabetes and low B12 are treatable.
Can anxiety cause tingling feet?
Yes. Anxiety and fast breathing can cause tingling in the hands, feet and around the mouth. It usually comes in episodes and settles when breathing slows. Persistent tingling still deserves a check.
Which deficiency causes numbness in feet?
Vitamin B12 deficiency is the most common. Copper, folate and vitamin E deficiencies are rarer causes.
Can tight shoes cause numb toes?
Yes. Narrow toe boxes and high heels squeeze the nerves between the toes. If numbness eases when you go barefoot, your shoes are a likely culprit.
