The pelvic floor is a combination of multiple muscles with ligamentous attachments creating a dome-shaped diaphragm across the boney pelvic outlet. This complex of muscles spans from the pubis (anterior) to the sacrum/coccyx (posterior) and bilateral to the ischial tuberosities. The bulk of the pelvic musculature is the levator ani, composed of the puborectalis, pubococcygeus, and iliococcygeus. The puborectalis wraps as a sling around the anorectal junction accentuating the anorectal angle during contraction and is a primary contributor to fecal continence. Elevation and support of the pelvic organs are associated with the pubococcygeus and the iliococcygeus. The pubococcygeus is the most medial component which separates, fashioning the levator hiatus with openings for the urethra, vagina (females), and anus. The bulbospongiosus and ischiocavernosus muscles are the primary contributors to the superficial portion of the anterior pelvic floor. The more superficial musculature of the posterior pelvic floor constitutes the external anal sphincter. The transverse perineal muscles cross the mid-portion of the superficial aspect of the pelvic floor and coalesce with the bulbospongiosus muscles and external anal sphincter as the perineal body.
A defecating proctogram is a test where you’re given an enema of a thick liquid that can be seen with an X-ray. Your provider will use a special video X-ray to record the movement of your muscles as you attempt to push the liquid out of the rectum. This will help to show how well you are able to pass a bowel movement or any other causes for pelvic floor dysfunction. This test is not painful.

Pelvic floor dysfunction can be diagnosed by history and physical exam, though it is more accurately graded by imaging. Historically, fluoroscopy with defecography and cystography were used, though modern imaging allows the usage of MRI to complement and sometimes replace fluoroscopic assessment of the disorder, allowing for less radiation exposure and increased patient comfort, though an enema is required the evening before the procedure. Instead of contrast, ultrasound gel is used during the procedure with MRI. Both methods assess the pelvic floor at rest and maximum strain using coronal and sagittal views. When grading individual organ prolapse, the rectum, bladder and uterus are individually assessed, with prolapse of the rectum referred to as a rectocele, bladder prolapse through the anterior vaginal wall a cystocele, and small bowel an enterocele.[10]
Pelvic floor dysfunction can be diagnosed by history and physical exam, though it is more accurately graded by imaging. Historically, fluoroscopy with defecography and cystography were used, though modern imaging allows the usage of MRI to complement and sometimes replace fluoroscopic assessment of the disorder, allowing for less radiation exposure and increased patient comfort, though an enema is required the evening before the procedure. Instead of contrast, ultrasound gel is used during the procedure with MRI. Both methods assess the pelvic floor at rest and maximum strain using coronal and sagittal views. When grading individual organ prolapse, the rectum, bladder and uterus are individually assessed, with prolapse of the rectum referred to as a rectocele, bladder prolapse through the anterior vaginal wall a cystocele, and small bowel an enterocele.[10]
Pelvic floor dysfunction is very different than pelvic organ prolapse. Pelvic organ prolapse happens when the muscles holding a woman’s pelvic organs (uterus, rectum and bladder) in place loosen and become too stretched out. Pelvic organ prolapse can cause the organs to protrude (stick out) of the vagina or rectum and may require women to push them back inside.
There is not a surgery to treat pelvic floor dysfunction because it is a problem with your muscles. In rare circumstances, when physical therapy and biofeedback fail to work, your provider might recommend you see a pain injection specialist. These doctors specialize in localizing the specific muscles that are too tense or causing pain, and they can use a small needle to inject the muscle with numbing medication and relaxing medication. This is called trigger point injection.

Mechanistically, the causes of pelvic floor dysfunction are two-fold: widening of the pelvic floor hiatus and descent of pelvic floor below the pubococcygeal line, with specific organ prolapse graded relative to the hiatus.[2] Associations include obesity, menopause, pregnancy and childbirth.[5] Some women may be more likely to developing pelvic floor dysfunction because of an inherited deficiency in their collagen type. Some women may have congenitally weak connective tissue and fascia and are therefore at risk of stress urinary incontinence and pelvic organ prolapse.[6]
You’ve likely already heard of kegels, the most common method for strengthening the pelvic floor. But there are plenty of additional exercises you can try to help train your pelvic floor. Watch this video to see yoga and fitness expert Kristin McGee (who recently gave birth to twins!) demonstrate three simple yet effective moves for strengthening your pelvic floor.
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