The glenoid labrum of the hip joint is the cartilage attached to the acetabulum, like the meniscus of the knee, which mainly serves to cushion external forces, reduce friction and increase the stability of the hip joint. Causes of acetabular labral injury include: hip impingement, hip torsion under weight, trauma (such as traffic accidents, falls or collisions), repetitive strain (such as playing golf frequently), and hip dysplasia and hip degeneration. Symptoms: pain in the hip joint or groin area, which may radiate to the front of the thigh, hip, femoral trochanter and medial knee; popping or interlocking of the hip joint; stiffness or limited movement of the hip joint. Ancillary examinations Plain plain film, bone scan, CT and MRI can be negative, MRA can improve the positive rate, but still 50% of patients miss the diagnosis. Hip arthroscopy can clarify the diagnosis. Treatment: If the injury is small, it can be treated conservatively, mainly by resting, adding NSAID anti-inflammatory painkillers, and gradually carrying out functional exercises; most acetabular labral injuries require surgery. At present, most of them are treated by arthroscopy, which can be performed under the microscope for debridement or glenoid labrum repair: after surgery, patients usually need to rest for 4-5 days before walking with weight, and the first two weeks after surgery, patients are encouraged to swim or ride bicycles for exercise; if treatment is delayed, it will cause wear and tear of the hip cartilage, and eventually degenerative changes will occur; prognosis: the efficiency of hip arthroscopy for glenoid labrum injury can reach 60%-90%.