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.
Blood - If the fluid in knee is an excessive amount of blood, it is usually due to a recent injury. Joint Fluid - Joint fluid helps lubricate the knee joint as it is used. Certain conditions may cause the body to produce an excess of joint fluid, causing knee effusion.