Sunday, December 13, 2009

What Are The Reasons For Black Stool My Stool Is Brown+black On Some Parts..?

My stool is brown+black on some parts..? - what are the reasons for black stool

my stool is light brown and black in some parts .. But the test for occult blood in stool in stool normal (in fact, three times ie .. ie, no blood / FOBT). What may be the reason for black?

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