Cancer patient passing black stool, Is this serious ?
my grandfather, aged 86, was diagnosed with adeno carcinoma of stomach - grade III, 2 months back.He is undergoing oral chemotherapy. Recently he passed black stool. Is this serious? If so what does this mean?
black stool indicates upper gi tract bleeding. it may be due to peptiv ulcer or due to malignancy or due to any ongoing inflamation in gi tract. is it the first time? please consult the doctor about it..
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