The vast majority of people with knee osteoarthritis are able to play basketball when they are well. However, if there is severe internal joint destruction, after getting well, the use of the joint should be reduced and basketball is not recommended. Knee osteoarthritis is a chronic disease that develops gradually. With standardized treatment, the disease can be alleviated, reducing symptoms and maintaining good knee function. The vast majority of patients with knee osteoarthritis can play basketball moderately after they get well, but they should pay attention to avoid prolonged and strenuous exercise, and strengthen the sports protection to avoid falling and so on, so as not to aggravate the damage of the knee joint. A small number of patients with knee osteoarthritis, if there is serious damage within the joint, should pay attention to reduce the use of the joint, so it is not recommended to play basketball activities.