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.
It can be caused by a problem with the circulatory system, the lymphatic system or the kidneys. You may also experience swelling due to fluid buildup after sitting or standing for a long time. Factors related to fluid buildup include: 1  Acute kidney failure. 2  Cardiomyopathy (disease of heart tissue). 3  Chronic kidney disease. 4  Cirrhosis (scarring of the liver).