Osteochondroma is a benign tumor, usually asymptomatic and painless, mostly occurring in adolescents and growing slowly. If the nature of the osteochondroma does not change in a 50-year-old patient and the patient is asymptomatic, surgical resection is usually sufficient and the prognosis is better. If the patient has osteochondroma, it is necessary to follow up the diagnosis and observation. If the osteochondroma in the pelvis or scapula area of the patient after 40 years old or 50 years old has a sudden pain, and then nucleosome concentration occurs, these cases should be highly suspected of malignant transformation, which is also called sarcomatous transformation. It should be reminded that for patients with osteochondroma, early detection, early treatment, the specific treatment plan should be selected and formulated under the guidance of doctors according to the specific conditions of patients, and should not be disposed of blindly by oneself, so as not to cause adverse consequences.