What Causes Knee Pain and Swelling?

By Staff WriterLast Updated Apr 6, 2020 11:27:27 AM ET
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Conditions that cause knee pain and swelling include a broken knee, arthritis of the knee, bursitis of the knee, Osgood-Schlatter disease and osteomyelitis, according to the American Academy of Orthopaedic Surgeons. Pain can range from mild to excruciating, depending on the condition.