Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive ...

As Dr. Traxler puts it, “There’s been lots of scary stuff in the media about black stool being a sign of cancer or other ...

For instance, red stool could be due to blood, but it could also result from red dye in your food and drink or even beetroot consumption. Black stool might indicate a serious medical condition ...