Without trauma, infection, rheumatism, rheumatoid, etc., sudden onset of redness, swelling and heat pain in the knee joint must be clinically considered as gout. Arthroscopy is important for the diagnosis, treatment and prognosis of gout disease. In this paper, we select photos of previous intraoperative gouty knee patients to help patients understand the harm of gout on knee synovium, meniscus and cartilage. Liu Pengcheng, Department of Orthopedics, Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine