Tests and diagnosis

By Mayo Clinic Staff

Tests and procedures used to diagnose rectal ulcers include:

  • Using a scope to examine your rectum. During sigmoidoscopy, your doctor inserts a flexible tube equipped with a lens into your rectum to examine your rectum and part of your colon. If a lesion is found, your doctor may take a tissue sample for laboratory testing.
  • Using sound waves to create images of your rectum. Ultrasound is an imaging technique that uses sound waves to create pictures. Your doctor may recommend an ultrasound to help differentiate solitary rectal ulcer syndrome from other conditions.
  • An X-ray of your rectum. During a procedure called defecation proctography, your doctor inserts a soft paste made of barium into your rectum. You then pass the barium paste as you would stool. The barium shows up on X-rays and may reveal a prolapse or problems with muscle function and muscle coordination.
April 28, 2012