1.   Anything that causes the tissues in the tunnel to swell, including pregnancy, thyroid disease and oral contraceptives, can compress the nerve.

2.   Lynn, though, said Larkin compressed a nerve and it prevents him from gripping a bat.

3.   The tough band of tissue that wraps the foot rips away from its connection to the heel bone and, sometimes, compresses nerves.

4.   When part of a disk protrudes from its normal position and compresses a nerve, it causes pain.