skos:altLabel | - blood clot
- blood in the stool
- bloody stool
- Black stool
- Melaena
- black stool
- black stools
- black tarry bowel movements
- black tarry stools
- blackish stools due to bleeding in the stomach
- dark, tarry stool from metabolized blood
- evacuation mix'd with blood
- melena
- passing black stool
- very dark or black stool
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