The Three Pillars of Shoulder Health. To fix nagging shoulder pain, always follow these rules: 1  Stop doing exercises that irritate the shoulders. 2  Get the shoulders to sit in the right position.  Get the shoulders to move properly.
Causes of Fluid on the Knee. 1  There can be the accumulation of fluid on the knee through rheumatoid arthritis or osteoarthritis. 2  There can be extra production of synovial fluid in the knee through arthritis. 3  Infection in the knee joint; the fluid on the knee is pus, and not synovial fluid.
Acute or overuse knee injuries may result in water on the knee. Swelling occurs as a result of leakage of fluid from damaged tissue. Bleeding may also occur from ruptured capillaries, resulting in swelling and discoloration (bruising). Damaged tissue releases chemicals that initiate inflammation.