Question

You have black stools but the rectal examine showed no blood what could it be?

Answer 1

hey here is your answer

Stool qualityWhat it may meanBlackBleeding in the upper gastrointestinal tract, such as the stomach.

hope you understand

Answer 2

one of the main forms of IBD ,Crohns disease, can be a possible but un common case of black stool tests many be needed to identify blood in dark stool bleeding in the lower digestive tract example small intestine, colon, rectum ect causes brught red blood to apper hope it helps u