What is the fluid in the knee joint?

Synovial fluid: The fluid in all joints is known as synovial fluid. This fluid acts as a lubricant to the joints and tendons.

Synovial fluid: Synovial fluid is the name of the fluid in the knee joint. One of the main components is hyaluronic acid. A main function of the fluid is to provide lubrication so that there is less friction with knee motion.

Knee Joint Fluid: Most often, knee joint fluid is called synovial fluid. Synovial fluid is the normal, slippery fluid found in joints that helps make movement smooth. In many inflammatory conditions, such as different types of arthritis, joint fluid can accumulate and cause discomfort. There can also be other fluids that accumulate in joints such as blood (fractures and ligament injuries) or pus (infection).

Synovial: Normal fluid in the knee joint is known as synovial fluid.