GASTROENTEROLOGY / DIGESTIVE DISORDERS EXPERT FORUM
Rectal or Anal Cancer

Rectal or Anal Cancer

What causes milignant tumors of anus or rectum to bleed?
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Tumors can be well vascularized, meaning, they contain a significant amount of blood vessels.

Bleeding can be caused by the tumor or mass that continues to grow will ulcerate into the inside portion of the colon or rectum.

It is the ulceration that causes the bleeding, as blood vessels within the tumor are the exposed.  

This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.

Kevin Pho, M.D.
www.kevinmd.com
www.twitter.com/kevinmd
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