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.
Knee effusion or swelling of the knee (colloquially known as water on the knee) occurs when excess synovial fluid accumulates in or around the knee joint.