The most common symptom is osteophytes and bone degeneration, which occurs more often in middle-aged and elderly patients, and even fluid in the knee joint, especially after activity can also lead to aggravation of symptoms. In order to avoid aggravation of pain symptoms, pain medication and oral celecoxib can be applied appropriately. Some patients have a history of trauma and are prone to knee ligament or meniscus damage, with significant localized pressure pain and a feeling of elasticity when moving, and are prone to complications of knee effusion.