The membrane of the bursa is semi-permeable, allowing some materials to flow across the membrane into and out of the sac. An injury to your bursa may cause it to fill with blood or white blood cells.

The NBA faces a surge of Achilles tendon injuries, sidelining star players like Tyrese Haliburton during the 2025 playoffs. Experts attribute this trend to year-round youth basketball, the game's ...

Giants QB Russell Wilson (l.), head coach Brian Daboll (second from l.) and others try to comfort Bryce Ford-Wheaton as he’s carted off with an Achilles injury on July 27, 2025.

And by the end of Sunday, the worst was confirmed. New York Giants wide receiver and special teams standout Bryce Ford-Wheaton tore his Achilles at training camp. He'll miss the entire season.

Jayson Tatum ruptured his right Achilles tendon in Game 4 of the Celtics’ second-round series against the Knicks. AP “He’s a competitor. He’s gonna compete in everything he does, including ...

Steelers rookie fullback DJ Thomas-Jones was carted off the field Sunday with an injury to his left foot/ankle. Coach Mike Tomlin said after practice that the injury is “significant.” Further imaging, ...