In adolescents with avulsion fractures of the ilium, conservative treatment can be used in less severe cases, such as when the fracture fragments are small and not significantly displaced. For more serious lesions, surgical treatment is needed. In the later stage of recovery, patients need to be instructed to carry out appropriate functional exercises. 1. Conservative treatment: In most cases, the lesions of these patients are mild. Conservative treatment can be adopted at this time. In the process of treatment, a brace can be used to immobilize the lesion site of the patient, and require him to continue bed rest for 2~4 weeks. At the same time, some anti-inflammatory and pain-relieving drugs can be applied to these patients, such as nimesulide, diclofenac sodium and so on. 2. Surgical treatment: For a few patients with severe lesions, surgical treatment should be adopted. For example, if the fracture block is large and the displacement is particularly obvious, surgery should be taken to set the corresponding fracture block and use screws and other devices for internal fixation. 3. Functional exercises: In the later stages of recovery, these patients should be instructed to perform functional exercises. For example, patients should be instructed to practice straight leg raising in bed, or walk slowly on the ground. It is recommended that patients go to the orthopedic department in time to receive standardized treatment, do not blindly use drugs.