Discover the top causes of black poop like diet, supplements, and gut health conditions, plus the best treatment options ...

Medically reviewed by Kumkum S. Patel, MD Noticing black stool can be alarming, but the cause isn’t always serious. Sometimes ...

Or you may easily see it as red blood, or black tar-like bowel movements ... Other tests require you to collect stool samples on more than one day. You then send the samples, in a special ...

Blood in the stool can make it appear red or even black. The brighter the color of red in the poop, the lower in the intestines the bleeding occurs. Mucus can appear white or yellowish.

One case report detailed a 93-year-old woman who reported lime-green stool after consuming a hamburger bun dyed black using yellow, blue, and red food dye. It's unclear how exactly food dye ...

Black stool can be an indicator of bleeding in the higher digestive tract. Similarly, red or maroon stool could mean lower digestive tract bleeding, caused by inflammatory bowel disease ...

But poop that looks black or bright red can be a sign of bleeding. So, even if you think you know why it's happening, always call your doctor if you have black poop. Black poop causes can vary ...