Introduction to the structure of the female pelvis The female pelvis is composed of three parts: the pubic bone, the ischium and the coccyx. Among them, the pubic symphysis is the part that connects the pubic bones on both sides and is the only passage from the female reproductive tract to the outside world. The pubic symphysis is not visible in most cases, and only extreme circumstances such as childbirth can cause it to bulge. Compared with the male pelvis, the female pelvis is larger and the related structures are shorter and wider, which allows women to give birth. The structure of the female pelvis also changes with age and the number of births. Therefore, understanding the structure of the female pelvis is important for women’s self-care, fertility and