Pins and needles, also known as paresthesia, is a sensation of uncomfortable tingling, prickling, itching, or skin crawling, usually felt in the arms, legs, hands, or feet. The most common cause of pins and needles is pressure on a specific part of the arm or leg, which compresses the nerves or reduces the blood supply to the local area. This usually resolves quickly when the position is changed and the pressure is removed.
Persistent pins and needles may be symptomatic of more serious conditions, such as nerve injury or inflammation. It can also result from nerve, spinal cord, or brain irritation or damage, and can be temporary or permanent. In some cases, pins and needles are caused by temporary or permanent nerve damage or certain disorders of the central nervous system.
Other possible medical causes of pins and needles include diabetes, Raynauds disease, hyperventilation, sciatica, chemotherapy, certain medications, and toxic exposure. Its important to see a doctor if you experience persistent or frequent episodes of pins and needles, as they may be indicative of an underlying health issue.
In summary, pins and needles can be caused by a variety of factors, including pressure on nerves, nerve damage, and certain medical conditions. It is important to seek medical attention if you experience persistent or frequent bouts of pins and needles, as it may be a symptom of an underlying health condition.