Hello, Knee effusion is known as water on the knee, occurs when excess fluid accumulates in or around the knee joint. There are many common causes for the swelling, including arthritis, injury to the ligaments or meniscus, or when fluid collects in the bursa.Her knee joint might got infected. Till it heals completely repeated repated aspiration is inevitable. She might be on some antibiotics which gradually cures disease.
Answered2016-03-06 13:21:08
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