About Grants.gov. Grants.gov is your place to FIND and APPLY for federal grants. The United States Department of Health and Human Services is proud to be the managing partner for Grants.gov.Learn more about Grants.gov.bout Grants.gov. Grants.gov is your place to FIND and APPLY for federal grants. The United States Department of Health and Human Services is proud to be the managing partner for Grants.gov. Learn more about Grants.gov.
Signs and symptoms of knee effusion include: 1  Puffiness and swelling in the knee. 2  Pain when bearing weight. 3  Stiffness or reduced range of motion due to increased fluid.  One knee appears noticeably larger than the 1  other. May feel warm to the touch.
Knee effusion, colloquially 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.This condition is known as prepatellar bursitis.auses of the swelling can include arthritis, injury to the ligaments of the knee or an accident after which the body's natural reaction is to surround the knee with a protective fluid. A diagram of the knee. There could also be an underlying disease or condition.