The hip joint is composed of the acetabulum and the femoral head of the hip bone, which is an important structure for maintaining the walking function of the lower limbs and is also part of the pelvis. The pelvis is composed of the right and left hip bones and the sacrococcygeal bone, which is an important structure for the transmission of power from the upper body downward and for the protection of the pelvic organs. There is a clear distinction between the pelvis and the hip joint, as the pelvis contains the hip joint but the hip joint is also part of the pelvis, and the two are inextricably linked. Injury to the pelvis can cause serious internal organ damage and can lead to very serious complications, such as rupture of internal organs, hemorrhagic shock, intrapelvic hematoma, etc. Therefore, pelvic injury requires active treatment.