What Causes Purple To Black Colored Stool?

Posted on Fri, 20 Oct 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Fri, 20 Oct 2017 Answered on

Mon, 27 Nov 2017 Last reviewed on

Question : I have a diarreha condition and the stool is dark purple to black. I have had diverticulitus in the past. I am 73 male I have no pain or fever. I have been self treating for 5 days with clear ddiet and clear liquids.

Answered by Dr. V. N. S. Parinam (1 hour later)

Brief Answer:
Upper gut bleeding

Detailed Answer:
hi,
Thanks for query.
Dark colored stool represents upper gut bleeding in general. It may be from stomach or duodenum. If you had taken too many pain killers earlier for diverticulitis it c
can cause ulcer n bleeding.
It may be different from diverticulitis.
I suggest a general abdominal examination by primary doctor. it is essential because clear fluids did not correct your condition.
It is not good to stay back without physician consultation.

Above answer was peer-reviewed by : Dr. Nagamani Ng