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Water on the Knee (Effusion) Causes and Treatments

Water on the Knee (Effusion) Causes and Treatments

Water on the knee is when fluid collects around and inside the knee joint, causing pain and swelling. Also known as knee effusion or fluid on the knee, it can occur whenever there's damage to the joint due to injury or underlying disease, such as arthritis.

Source: Verywell Health

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