Female perineum (English)

An overview of the borders and external features of the female perineum in the lithotomy position. The female perineum is bordered by the pubic symphysis anteriorly, the ischiopubic rami anterolaterally, the sacrotuberous ligaments posterolaterally and the sacrum and coccyx posteriorly. Visible in this illustration is the surface anatomy of the female urogenital triangle that is defined by the vulva. The vulva represents the external female genitalia that include the mons pubis, labia majora, labia minora, clitoris, vestibule of the vagina, vaginal orifice and external orifice of the urethra. Posterior to the urogenital triangle is the anal triangle, containing the anal aperture. Not visible in this illustration are the internal structures of the female perineum which include the female urethra, vaginal canal, anal canal, perineal muscles and fascia.