What causes bursitis?

What causes bursitis?

Repetitive motions, such as a pitcher throwing a baseball over and over, commonly cause bursitis. Also, spending time in positions that put pressure on part of your body, such as kneeling, can cause a flare-up. Occasionally, a sudden injury or infection can cause bursitis.

Activities that can lead to bursitis include:

• Carpentry.
• Gardening and raking.
• Painting.
• Poor posture or a poorly positioned joint or bone (due to different leg lengths, bone spurs, or arthritis in a joint).
• Scrubbing.
• Shoveling.
• Sports like tennis, golf and baseball.