What does black poop mean

If you keep getting black poop and diarreha... Whats it mean?

Causes of black colored stools (known as melena) could be from:
- acidified blood
- blood from higher in the digestive tract
- iron supplements or foods high in iron
- Pepto-Bismol or other medicines containing bismuth
- black licorice
- large amounts of spinach or other greens
- blueberries
- aspirin
- other foods dark in color such as chocolate sandwich cookies (Oreos)

But there is also a chance it could be from your stomach bleeding so if it keeps happening you should contact your doctor.

um...I'm not sure what it means but honestly it does not sound good maby you should go to the dr.
I hope you get better

 
Since you also have diarrhea, I'd suggest that it might be a digestive tract disorder. If it keeps up for a few days then it is very important that you consult with your doctor.