Why do I get pins and needles in my leg?


Quick Answer

Weight cutting off blood supply to nerves in the area causes temporary pins and needles, according to the National Health Service. Raynaud’s disease, hyperventilating and dehydration are other common reasons for short-term pins and needles. Conditions such as a compressed ulnar nerve, sciatica and carpal tunnel syndrome cause prolonged pins and needles.

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Full Answer

Chronic, or long-lasting, pins and needles can be a symptom of diabetes, and NHS states that pins and needles often occur after intense treatments such as chemotherapy or an injury take place. A stroke, brain tumor or multiple sclerosis are nervous system-damaging conditions that also cause pins and needles. Cervical spondylosis occurs when the tissues and bones of the spine wear down and trap the nerves, which leads to pins and needles. Infection, overuse or injury caused by regularly using vibrating tools can cause nerve damage that leads to pins and needles.

Exposure to toxic substances such as radiation or lead and alcohol usage can also cause pins and needles, notes NHS. Some medications can cause pins and needles in the legs such as anticonvulsants, antibiotics and HIV medications, and a deficiency of vitamin B12 in the body and general malnutrition are causes of long-lasting pins and needles.

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