Playing ball with calf bone headache may be related to the following reasons: First, it may be caused by osteochondritis, a disease often seen in patients who often jump down from excessive heights or often jump up repeatedly to fight for the ball, which will make the calf area under excessive load. In addition, if the patient lands in the wrong position, such as using the heel to land, it may cause excessive vibration to the calf area. In summary, the several reasons mentioned above can lead to aseptic inflammation of the periosteum in the calf area, which in turn can produce bone pain. Second, this condition may be caused by fatigue fracture. If the patient often does some excessive lower limb exercise, it is possible that the lower limb bone gradually produces some fatigue injury until a fracture is produced. This condition can lead to continuous pain. Third, this situation may also be caused by osteoporosis, such as in the growth period of adolescents, if you do such exercise activities as playing ball, will promote the growth of height. At this time, if the patient’s nutritional supply can not keep up, it will cause osteoporosis in the body, and then produce some bony pain in the calf, thigh, hip and other places.