The pubic symphysis consists of a fibrocartilaginous interpubic disc and surrounding ligaments uniting the bodies of the pubic bones in the median plane. The interpubic disc is generally wider in women. The ligaments joining the bones are thickened at the superior and inferior margins of the symphysis, forming superior and inferior pubic ligaments. The superior pubic ligament connects the superior aspects of the pubic bodies and interpubic disc, extending as far laterally as the pubic tubercles. The inferior (arcuate) pubic ligament is a thick arch of fibers that connects the inferior aspects of the joint components, rounding off the subpubic angle as it forms the apex of the pubic arch. The decussating, fibers of the tendinous attachments of the rectus abdominis and external oblique muscles also strengthen the pubic symphysis anteriorly.