Bloody diarrhea, also known as bloody stool or rectal bleeding, can be bright or dark red or tar-like. It can be a symptom of anal fissures, hemorrhoids, infections, inflammatory conditions, and, ...

A dog vomits yellow when its stomach is empty or irritated, and bile gives the vomit its yellowish color. In this dog guide, ...

One sign of heat stroke that may be unfamiliar to many is bright red gums.