Pinched nerves occur when a nerve or group of nerves ceases to function properly because it is pinched or pressed, often between bone and a ligament or other tissue. Pinched nerves often cause pain, tingling, numbness or weakness.

Nerves are a network of “wires” throughout the body that carry information to and from the brain and spinal cord. Injury to a nerve can disrupt these signals. This interference often causes muscles to fail to work properly.

Many conditions can involve pinched, compressed or constricted nerves. Examples include sciatica, herniated disc, spinal stenosis, carpal tunnel syndrome, tennis elbow and sometimes arthritis.

Physical examination and imaging tests can be used to diagnose pinched nerves. Pinched nerves usually cause no permanent damage if they are properly treated. However, an untreated pinched nerve can result in permanent damage. Treatment depends upon the cause and frequently involves rest, physical therapy and medication. In some cases, surgery is recommended.