The hip bone is the hip bone of the human body, and the hip bone is an important structure that makes up the human pelvis. The specific location of the hip bone is above the legs, below the waist, and both sides of the hip bone. The human body has two hip bones, one on each side, and the two hip bones work together with the sacral vertebrae in the lower part of the spine to enclose the pelvic structure. In early childhood and adolescence, the hip bone is made up of three different bones, which have not yet fused with each other to form one. The crotch bone in early childhood and adolescence is composed of the iliac bone, pubic bone, sit bones, three bones together, as the human body grows and develops, the three bones together to form a piece, is the human crotch bone, the junction of the three bones is the location of the human hip joint.