The knee normally contains a small amount of fluid that helps lubricate the joint and allow smooth movement. Problems begin when the knee starts producing too much fluid. This excess fluid is Joint Maintenance for Active Adults Preventative Gel Injections Joint Relief Institute Experimental Investigations of Biological Lubrication at the Nanoscale: The Cases of Synovial Joints and the Oral Cavity Does drinking a lot of water lubricate your joints? Hydrate Joints YouTube How Do Cartilage Lubrication Mechanisms Fail in Osteoarthritis? A Comprehensive Review The Role of Lubricin, Irisin and Exercise in the Prevention and Treatment of Osteoarthritis