A bursa is a fluid-filled sac that cushions and lubricates areas of the body where friction is likely to occur, such as the area between two bones, a tendon or ligament and a bone, or bone and skin.

Current as of: May 22, 2015

Author: Healthwise Staff

Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Kenneth J. Koval, MD - Orthopedic Surgery, Orthopedic Trauma