Viral gastroenteritis does not typically cause bloody diarrhea. Colitis occurs when the tissues lining the colon become inflamed. Hemorrhoids, also called piles, can commonly develop because of chronic constipation or straining at stools, pregnancywork strain heavy lifting, etc. More Sign up for our newsletter Discover in-depth, condition specific articles written by our in-house team. Very dark or black-red blood is often associated with bleeding in the stomach or other organs in the digestive system. Some causes can be serious, which is why it should be checked out by your doctor.
Proctitis occurs when the tissues that make up the rectum become inflamed, often resulting in pain and bleeding.
Bleeding from the bottom (rectal bleeding)
If bleeding is associated with an already diagnosed medical condition, a doctor will discuss ways to manage, reduce, and track symptoms. Since rectal bleeding can sometimes be a symptom of colorectal cancer — cancer of the colon or rectum — this is the primary reason rectal bleeding should not be ignored. Fissures occur when tissues lining the anus, colon, or rectum are torn, resulting in pain and rectal bleeding. Maroon or black blood is usually caused by bleeding higher in the gut. Treatment for STIs usually involves either an antibiotic, antiviral, or antifungal medication, depending if the cause is bacterial, viral, or fungal.