A cyst at the root of the thigh may be a soft tissue cyst or a bone cyst. Local MRI can be improved to determine the source of the cyst and its size. If it is a soft tissue cyst, it can be surgically removed in a localized area. If it is a bone cyst, which is relatively small and has no obvious symptoms, it can be followed up and observed. If it is a larger bone cyst, it can be surgically scraped at the selected local site and may require bone graft treatment depending on the situation. Regardless of soft tissue cysts or bone cysts, there is a possibility of recurrence after surgery, so regular follow-up visits should be made and local X-rays should be taken to understand the condition of bone cysts. In addition, avoid strenuous exercise to prevent local pathological fracture.