Other causes of lower GI bleeding include:

  • Radiation injury
  • Meckel’s diverticulum
  • Other small bowel pathology
  • Solitary rectal ulcers
  • Portal colopathy
  • Prostate biopsy sites
  • Dieulafoy lesions
  • Endometriosis
  • Colonic varices

Ten to fifteen percent of patients with an apparent lower GI bleed will, in fact, have an upper GI source for their bleeding (see image below) [6].

Learning bite

Bleeding oesophageal varices or peptic ulcer disease can present with fresh blood PR.