Causes
By Mayo Clinic staffThe most common causes of bursitis are repetitive motions or positions that irritate the bursae around a joint. Examples include:
- Throwing a baseball or lifting something over your head repeatedly
- Leaning on your elbows for long periods of time
- Extensive kneeling, for tasks such as laying carpet or scrubbing floors
- Prolonged sitting, particularly on hard surfaces
Some bursae at the knee and elbow lie just below the skin, so they are at higher risk of puncture injuries that can lead to infection of the bursae (septic bursitis).
- Sheon RP. Bursitis: An overview of clinical manifestations, diagnosis, and management. http://www.uptodate.com/home/index.html. Accessed Aug. 4, 2011.
- Schmidt MJ, et al. Tendinopathy and bursitis. In: Marx JA, et al. Rosen's Emergency Medicine. 7th ed. Philadelphia, Pa.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-323-05472-0..00204-8&isbn=978-0-323-05472-0&uniqId=270872816-2. Accessed Aug. 4, 2011.
- Colburn KK. Bursitis, tendinitis, myofascial pain, and fibromyalgia. In: Bope ET, et al. Conn's Current Therapy 2011. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-1-4377-0986-5..00022-3&isbn=978-1-4377-0986-5&uniqId=270872816-3. Accessed Aug. 4, 2011.
- Questions and answers about bursitis and tendonitis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Bursitis/default.asp. Accessed Aug. 4, 2011.
- Clark BM. Tendonitis. American College of Rheumatology. http://www.rheumatology.org/practice/clinical/patients/diseases_and_conditions/tendonitis.pdf. Accessed Aug. 4, 2011.


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