A pinched nerve occurs when too much pressure is applied to a nerve by surrounding tissues, such as bones, cartilage, muscles or tendons. This pressure disrupts the nerve's function, causing pain, tingling, numbness or weakness.

A pinched nerve can occur at a number of sites in your body. A herniated disk in your lower spine, for example, may put pressure on a nerve root, causing pain that radiates down the back of your leg. Likewise, a pinched nerve in your wrist can lead to pain and numbness in your hand and fingers (carpal tunnel syndrome).

With rest and other conservative treatments, most people recover from a pinched nerve within a few days or weeks. Sometimes, surgery is needed to relieve pain from a pinched nerve.

Pinched nerve signs and symptoms include:

• Numbness or decreased sensation in the area supplied by the nerve
• Sharp, aching or burning pain, which may radiate outward
• Tingling, pins and needles sensations (paresthesia)
• Muscle weakness in the affected area
• Frequent feeling that a foot or hand has "fallen asleep"

The following measures may help you prevent a pinched nerve:

• Maintain good positioning — don't cross your legs or lie in any one position for a long time.
• Incorporate strength and flexibility exercises into your regular exercise program.
• Limit repetitive activities and take frequent breaks when engaging in these activities.
• Maintain a healthy weight.

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