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A 29-year-old female asked:

I'm quite tender tonight on the upper right side under my rib cage and i'm a little worried as i had quite a dark stool earlier today .

1 doctor answer1 doctor weighed in
Dr. Arthur Heller
Gastroenterology 43 years experience
Worried? C MD: Tender in area you describe can be from gallbladder, duodenum , ( including ulcer), colon, kidney stone, other. Dark stool may be dietary, or not. Black stool may be from blood, iron, peptobismol, other. Maroon stool usually from blood. See your doc today.

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Last updated Jun 8, 2013

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