Most people refer to the hip bone is actually the hip joint, located in the human body above the root of the thigh, some people say the hip bone, referring to the human pelvis. Whether the hip bone refers to the pelvis or the hip joint, it is an important bony structure that connects the upper body and lower limbs of the human body. The adult pelvis is made up of two iliac bones, two pubic bones, two sit bones, a whole sacrum and a whole tail bone, and is called the hip bone because it is an important bone involved in human walking and striding movements. Whether it is the pelvis or hip joint, are involved in the human body’s key points of activity, only the pelvis and hip joint stability and health, the human body’s various movements can be successfully completed. The specific location of the pelvis, is the human lower limb legs and the entire waist in the middle of the skeletal structure, the overall shape like a basin shape without a bottom, the upper mouth is relatively large, while the lower mouth is relatively small, the hip joint is the joint on the outside of the pelvis, the human body to maintain a sitting position, the entire upper body and lower body folding line position on the outside is the location of the hip joint.