Hip osteoarthritis can be maintained in summer through moderate exercise, paying attention to keep warm and reasonable diet. 1. Moderate exercise: In summer, when the temperature is suitable, the hip joint can be maintained through moderate exercise, such as walking, playing tai chi and other gentle non-weight-bearing exercises. Patients need to avoid frequent squatting or too much mountain climbing, stair climbing, etc., to minimize the wear and tear of joint cartilage. 2. Pay attention to warmth: in summer, the temperature difference between morning and evening is big, so you need to pay attention to the hip joint to keep warm and avoid outside temperature interference, resulting in cold. 3. Dietary control: High temperature in summer makes it easy to consume calories, so it is necessary to control the amount of food and maintain a normal weight. If overweight will aggravate the friction of the hip joint, serious wear and tear of the articular cartilage, the hip joint will also be damaged.