Located at the center front of the pubic bone, the pubic symphysis is a cartilaginous joint that holds together the left and right halves of the front portion of the pelvis.he pubic symphysis allows the pubic bones to shift during walking. The pubic symphysis allows the pelvic girdle to expand during childbirth. The pubic symphysis can be found at the center front of the pubic bone. Surgical repair may be required to treat a malfunction of the pubic symphysis.