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.
Symptoms of A Pinched Nerve
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"
Causes of A Pinched nerve
A pinched nerve occurs when too much pressure (compression) is applied to a nerve by surrounding tissues.
In some cases, this tissue might be bone or cartilage, such as in the case of a herniated spinal disk that compresses a nerve root. In other cases, muscle or tendons may cause the condition.
In the case of carpal tunnel syndrome, a variety of tissues may be responsible for compression of the carpal tunnel's median nerve, including swollen tendon sheaths within the tunnel, enlarged bone that narrows the tunnel, or a thickened and degenerated ligament.