The perineum is a diamond-shaped region containing the genitalia and anus.
Borders
- Superior — Pelvic floor (inferior surface of the pelvic diaphragm)
- Lateral — Ischiopubic rami and ischial tuberosities
- Anterior — Pubic symphysis
- Posterior — Sacrum, coccyx and sacrotuberous ligament
Triangles
The perineum can be divided into two triangles by the superficial transverse perineal muscle which is located between the two ischial tuberosities — the urogenital triangle and the anal triangle.