The acetabular skeleton is composed of the ilium, pubic bone and sit bones, which converge in the acetabulum and fuse completely at about 16 years of age. The acetabulum is surrounded by an acetabular glenoid labrum made of fibrocartilage to increase the depth of the acetabulum. The acetabular notch is closed by the transverse acetabular ligament, which enlarges the semilunar acetabular articular surface into a ring shape to hug the femoral head, and the acetabular fossa is filled with fatty tissue. Patients who have an acetabular injury, usually an acetabular glenoid labral tear, will experience hip pain, limited hip flexion and extension, internal and external rotation, and can cause damage to the femoral head cartilage, requiring arthroscopic surgical suture treatment. In addition, an acetabulum that develops too small or in an abnormal position can also easily cause dislocation of the femoral head, resulting in shortening of the lower limb and deformity of the hip joint.