Severe bleeding (diverticular hemorrhage) is a separate problem from diverticulitis. Severe bleeding occurs in less than 5% of
people with
bleeding from diverticula
in the colon. Bleeding stops on its own in about 75% of cases.1 But sometimes, bleeding may be
severe enough that a blood transfusion is needed.
Imaging tests including angiography (also known as arteriography) may
be used to find the location of persistent bleeding. Angiography also can be
used to deliver medicines to the site to help stop the bleeding. Doctors also
may use colonoscopy to apply medicines or instruments to try to stop
bleeding.
If these methods do not work, surgery may be necessary to prevent
repeated problems with bleeding.