What causes synovitis of the knee joint?

Aug 24, 2022 Source: Cainiu Health
Disease description:

I don't know why I developed knee synovitis, as I've always paid attention to keeping warm. I'd like to know what causes knee synovitis.

Doctor's answer (1)
Dr. Lin Yunfei
Clinically, this condition has many causes, including aseptic, immune system-related, rheumatic, and tuberculous factors. The most common type is aseptic synovitis, in which the aseptic inflammation is caused by cold exposure, overuse, trauma, or excessive activity. It is important to keep warm and avoid strenuous exercise. Additionally, strengthening the muscles around the knee joint can help reduce the incidence of knee synovitis.