Rectal Bleeding

Rectal bleeding (known medically as hematochezia) refers to passage of bright red blood from the anus, often mixed with stool and/or blood clots. Most rectal bleeding comes from the colon, rectum, or anus and can be associated with diarrhea. Sometimes melena may occur with bleeding from the right colon.Causes of rectal bleeding: Rectal bleeding is commonly due to diverticular disease. It can also be due to colitis, proctitis, angiodysplasia, colorectal cancer, polyps, or haemorrhoids.