Here, it lies midway between the anterior superior iliac spine and the symphysis pubis. The labia majora extend from the mons pubis to the perineum. Degeneration of the symphysis pubis accompanies aging and postpartum. A diastasis of the symphysis pubis is a cause of pelvic girdle pain (PGP). The symphysis pubis separates to some degree during childbirth. Symphysiotomy is the surgical opening of the symphysis pubis. In some women this separation can become a diastasis of the symphysis pubis. The main motions of the symphysis pubis are superior/inferior glide and separation/compression. These bones are the pubis, ilium and ischium. Each clitoral crus connects to the rami of the pubis and the ischium. External obturator&colon; originates on the pubis and ischium and inserts on the trochanteric fossa. This includes any break of the sacrum, hip bones (ischium, pubis, ilium), or tailbone. Each hip bone consists of 3 sections, ilium, ischium, and pubis. The hip bone is formed by three parts&colon; the ilium, ischium, and pubis. It involves the decorative scarring of the mons pubis.