Osteoid osteoma of thigh surgery is generally recommended to carry out weight-bearing activities on the ground for 4~8 weeks after surgery, and going up the stairs three weeks after surgery may affect the wound recovery, and it is recommended that the patient goes up the stairs after the wound recovery according to the condition. Osteoid osteoma is a common bone tumor, which may be related to bone growth and bone metabolism and other factors. The main clinical symptom is gradually aggravating local pain, which may occur after activity or local stress, and soreness in the limb or body. Resting pain may occur, and even nocturnal pain and interference with sleep. Osteoid osteoma of thigh is often treated by surgery, with resection of the tumor nest, and depending on the size of the tumor nest, autologous bone graft or artificial bone filling, or even internal fixation with steel plate. If the wound has not fully recovered and the bone scab is not yet formed 3 weeks after the surgery of thigh osteoid osteoma, going up the stairs at this time may affect the stability of the femoral stem, affect the bone healing, slow down the recovery of the disease, and lead to local swelling and pain. Therefore, it is recommended that after 4~8 weeks after surgery, when the bone scab starts to form, patients should start to go down to the ground for weight-bearing activities, gradually increase the activity degree, and do not bear weight locally too early.