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How can bursitis cause knee pain?

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A bursa is a sac that holds a small amount of fluid that’s under the skin above your joint. It helps prevent friction when the joint moves. Overuse, falls, or repeated bending and kneeling can irritate the bursa on top of your kneecap. That leads to pain and swelling. Doctors call this prepatellar bursitis. You may also hear it called ''preacher's knee."

SOURCES:

JAMA: “For Some Injuries, It's All in the Name.”

American Family Physician: “Evaluation of Patients Presenting with Knee Pain: Part I. History, Physical Examination, Radiographs, and Laboratory Tests.” 

Rouzier, P. The Sports Medicine Patient Advisor, second edition, SportsMed Press, 2004. 

ACP Medicine: “Osteoarthritis.”

Mayo Clinic: “Patellofemoral Pain Syndrome.”

Reviewed by Michael W. Smith on August 3, 2020

SOURCES:

JAMA: “For Some Injuries, It's All in the Name.”

American Family Physician: “Evaluation of Patients Presenting with Knee Pain: Part I. History, Physical Examination, Radiographs, and Laboratory Tests.” 

Rouzier, P. The Sports Medicine Patient Advisor, second edition, SportsMed Press, 2004. 

ACP Medicine: “Osteoarthritis.”

Mayo Clinic: “Patellofemoral Pain Syndrome.”

Reviewed by Michael W. Smith on August 3, 2020

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Does iliotibial (IT) band syndrome cause knee pain?

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