The pubic bone protruding from a woman lying flat on her back is generally a normal physiological phenomenon and does not usually need to be dealt with. The pubic bone is located in the lower part of the front of the hip bone and is an important bone structure on the pelvis. The pubic bone has two branches, the two pubic bone branches together constitute the pubic bone joint, thus forming a complete pelvic ring. The pubic bone mainly serves to stabilize the pelvis. The pubic bone generally protrudes outward and is slightly higher than the rest of the abdomen to protect the pelvic organs. A woman’s pelvis is relatively wider than a man’s, and the height of the pubic bone usually correlates with the shape of the pelvis, so a woman lying flat on her back will have a more prominent pubic bone. For thin women, the pubic bone will be more obvious, this situation is a normal physiological phenomenon, no need to deal with. If it is combined with other uncomfortable symptoms, you should consult a doctor for standardized treatment in time to avoid delaying the condition.