Exams and Tests

To confirm the presence of a prolapsed rectum, the doctor may ask the person to sit on the toilet and strain. If the rectum does not protrude, the doctor may administer a phosphate enema to confirm the diagnosis. The main condition to distinguish rectal prolapse from is protruding or prolapsing hemorrhoids.

A defecogram (a test that evaluates bowel control) may help distinguish between a mucosal prolapse and a complete prolapse.