Generally referred to as the calf to meet the face of the bone, refers to the calf tibia in front of, in front of the medial side, this place is generally skin and bone, the Department of its pain the most common causes of the following categories: First, after trauma, the site of pain, pressure, mostly due to periosteal injuries or contusions and heavier fractures. Some have not been traumatized, but long time excessive activities, more than the bone’s ability to withstand, fatigue fracture will occur. Second, caused by infection, such as no trauma, sudden pain, accompanied by local temperature rise, redness, fever, etc., may be infected with osteomyelitis can cause pain. Third, it may be caused by tumor, such as osteoid osteoma, which will be accompanied by obvious pain. Fourth, due to bone disease, such as severe osteoporosis or vitamin D deficiency, etc., will also appear in this area of soreness.