This is the location of the pubic symphysis, which is the middle point of the anterior pelvic wall of the human body. Due to the special physiological functions of pregnancy and childbirth, the pelvic structure of women is very different from that of men. The female pelvic opening is an oval shape that tends to be rounded, and when viewed from the top of the head, the anterior and posterior diameters of the female pelvis are slightly shorter than the transverse diameters, and the pubococcygeal symphysis is also smoother. From the outside, the pubic symphysis is relatively flat, but the prominent position of the pubic symphysis may indicate that the anterior-posterior diameter of the pelvis is longer than normal, while the transverse diameter is shorter than normal, which means that the pelvis tends to be more rounded. A woman with a round pelvis has a more prominent pubic symphysis because it is connected by fibrocartilage and ligaments, and once the symphysis has been damaged, it can also lead to localized hyperplasia, which can make it look more prominent.