Colon non tumor
Colitis (non-infectious)
Hemorrhagic colitis

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 27 December 2016, last major update May 2013

Copyright: (c) 2003-2016,, Inc.

PubMed Search: hemorrhagic colitis[title]
Cite this page: Hemorrhagic colitis. website. Accessed May 21st, 2018.
Definition / general
  • Abdominal cramping, bloody diarrhea, low grade or no fever
  • Usually resolves spontaneously, but may be complicated by hemolytic uremic syndrome or thrombotic thrombocytopenic purpura
Clinical features
  • Endoscopy: right sided colonic edema, erosions, hemorrhage
Microscopic (histologic) description
  • Hemorrhage and edema in lamina propria; focal superficial mucosal necrosis with preservation of deeper portion of crypts; acute inflammation; may have inflammatory pseudomembranes