Sleeping on the side is not recommended for acetabular labral injury. The acetabular labrum mainly plays a role in stabilizing the joint, after the injury, strenuous exercise and high-intensity physical activities should be avoided, and the weight bearing on the affected side of the joint should be reduced, and rest can be strengthened. However, it is clinically recommended to lie flat, not side lying position, especially the affected side lying position. Sleeping on the side of acetabular labral injury may compress the wound, aggravate the pain, or even aggravate the injury, which will seriously affect the prognosis. After acetabular labral injury, avoid repetitive hip movement, go to the hospital in time for targeted treatment, review in time in the later stage, and do rehabilitation training under the guidance of the doctor, so as to avoid trivializing the condition and causing adverse consequences.