You may develop fluid on the knee due to an injury or a health condition such as arthritis. Treatment can depend on the cause but may include physical therapy, medical procedures, and medication.

Knee effusion, sometimes called water on the knee, occurs when excess fluid accumulates in or around the knee joint. Common causes include arthritis and injury to knee ligaments and cartilage.

Knee issues are common, whether due to injury, arthritis, or simply wear and tear over time. A common problem many people face is the accumulation of fluid in the knee joint, often called "water ...

If your knee is swollen, it's also called an infused knee. Swelling happens when fluid builds up around or behind the joint in your knee. An infused knee may also be called an effusion in your ...

Knee swelling happens when fluid collects in or around the knee joint. Another term for a swollen knee is knee effusion or water on the knee. You may need medical attention if: swelling continues ...

WHEN blood is aspirated from the knee joint after a knee injury, it is often mixed with visible droplets of liquid fat. 1 Fat in the blood can also be recognized on x-ray examination by the ...