Stretch synovitis is mainly trauma-induced synovial rupture secretion of fluid, rheumatic synovitis is mainly chronic synovial hyperplasia and hypertrophy secretion of fluid. Stretch synovitis is mainly due to trauma-induced synovial rupture, congestion and edema secretion of fluid, causing lymphatic circulation disorders resulting in chronic inflammation, mainly acute swelling, pain, limited mobility, joint effusion is light red or bloody. Rheumatic synovitis is a chronic aseptic inflammation of the synovial membrane with hyperplasia and hypertrophy, which secretes fluid and is characterized by joint swelling, chronic pain, and limitation of joint movement, and the joint fluid is usually yellowish in color. These are the main differences between tensile synovitis and rheumatic synovitis, the specific need to consult a doctor to identify.