Some causes are short-lived and may resolve on their own, like if you have had a bout of diarrhea or constipation. However, any time you see a large amount of mucus in stool or if the mucus is ...

If you’ve taken bismuth medication like Pepto Bismol, that can also make your stools look almost black ... by a bacterial ...

However, in some cases, small, hard lumps may develop just inside and outside the anus, so it may be beneficial to learn about what anal cancer may look like ... in the stool, mucus, stomach ...