Femoral head necrosis can be exercised by bicycle, especially in the early stage of femoral head necrosis is not particularly serious, cycling exercise is a way to avoid weight-bearing exercise, belongs to aerobic exercise, and walking and, climbing, etc., which is not weight-bearing. After exercise can reduce weight, can increase the muscle strength of the legs, promote blood circulation, improve the femoral head necrosis. When riding a bicycle for exercise, pay attention to the examination, according to the severity of femoral head necrosis, if it is already in the collapse stage of femoral head necrosis, joint gap when the pain is more serious, it is not very suitable for cycling for exercise. The early stage of femoral head necrosis is suitable, there is no obvious change in the film, and there may be slight sclerosis in MRI, so you can do proper aerobic exercise, and cycling is a good way.