Cold knees in summer are the result of deficiency or osteoarthritic conditions. First, when the knee is cold, you should carry out certain aerobic exercise, so that the blood circulation around the body is accelerated, so that the hemodynamics is accelerated. Second, summer knee cold can also be in the knee around the compress external medicine, such as local spray rub safflower oil, etc., can play a blood circulation, increase the epidermal temperature of the clinical effect. Third, such as summer cold knees are recommended to the hospital to take radiographic examination, it is recommended to take X-rays to see whether there are bone spurs, osteoarthritis or osteomalacia and other conditions appear. If the above osteoarthritis exists, apply, for example, microwave physiotherapy, short-wave physiotherapy, high-frequency electric pulse physiotherapy and other ways and means to carry out physiotherapy for knee joints and knees.