Osteochondroma common occurred in childhood and adolescence, more men than women. Osteochondroma good hair in the vicinity of the epiphysis of long bones; its good site turn up and down side for the femur, proximal tibia, proximal humerus, the lower end of tibia. Pelvis, scapula, spine, ribs, etc. can also happen. A small number of osteochondroma because of its location, size, shape relationships, resulting in symptoms including vascular oppression, oppressive or stimulate the nerves, joints or tendon impeding activity, or give rise to local frictional bursitis, and other osteochondroma without any symptoms. Basement fractures can occur occasionally, but very easy to heal. Adult patients, that is, to stop tumor growth. If they are found to continue to grow when they should have the attention of possible malignant tumor, complete resection should be timely. General osteoma (skull region are) different from the malignant transformation of osteochondroma greater tendency, from the pelvis, scapula, spine and rib bones, such as the trunk of the most significant happened.