Usually, these pockets do not cause symptoms or require treatment unless they become infected, which is when a condition called diverticulitis occurs. Infected and inflamed diverticula are often painful and can cause rectal bleeding, usually a moderate rush of blood that flows for a few seconds. Proctitis occurs when the tissues that make up the rectum become inflamed, often resulting in pain and bleeding.
Colitis occurs when the tissues lining the colon become inflamed. A type of colitis called ulcerative colitis can also cause ulcers, or open, progressive sores, that are prone to bleeding. Treatments for proctitis and colitis vary, depending on the causes and range from antibiotics to surgery. Bacterial infections can cause inflammation of the colon and stomach, causing diarrhea that may contain mucus and spots of blood. Viral gastroenteritis does not typically cause bloody diarrhea.
Treatment for gastroenteritis usually involves fluids, rest, and antibiotics or antivirals, depending on the cause. Unprotected sexual intercourse that involves the anal area can spread a wide range of viral and bacterial diseases. These can cause inflammation of the anus and rectum. Inflammation, if it occurs, increases the likelihood of bleeding.
Treatment for STIs usually involves either an antibiotic, antiviral, or antifungal medication, depending if the cause is bacterial, viral, or fungal. Weakened rectal tissues can allow a portion of the rectum to push forward or bulge outside of the anus, usually resulting in pain and, almost always, bleeding. Prolapse is more common in older adults than in younger people. Some people with this condition may require surgery to correct it. Polyps are noncancerous, abnormal growths.
When polyps grow on the lining of the rectum or colon they can cause irritation, inflammation, and minor bleeding.
In many cases, a doctor will remove polyps so they can be tested for signs of cancer and to avoid the risk of them becoming cancerous.
Cancer that impacts the colon or rectum can cause irritation, inflammation, and bleeding. As many as 48 percent of people with colorectal cancer have experienced rectal bleeding. Colon cancer is a very common form of cancer and tends to progress slowly, so it is often treatable if caught early. But it's sometimes a sign of something else.
A GP can do a test to check this if you're worried. Page last reviewed: 24 April Next review due: 24 April Bleeding from the bottom rectal bleeding. Check if you're bleeding from the bottom You might be bleeding from the bottom if you have: blood on your toilet paper red streaks on the outside of your poo pink water in the toilet bowl blood in your poo or bloody diarrhoea very dark, smelly poo this can be blood mixed in poo A small amount of one-off bleeding can often go away on its own without needing treatment.
This site complies with the HONcode standard for trustworthy health information: verify here. This content does not have an English version. This content does not have an Arabic version. See more conditions. Request Appointment. Symptoms Rectal bleeding. Definition Causes When to see a doctor. Products and services. Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information.
Health Conditions Discover Plan Connect. Causes Symptoms When to seek help Will rectal bleeding go away on its own? Diagnosis Treatment Takeaway We include products we think are useful for our readers. Causes of rectal bleeding. When should I seek medical help? Will rectal bleeding go away on its own? How is rectal bleeding diagnosed? How is rectal bleeding treated? Read this next. Medically reviewed by Saurabh Sethi, M. Medically reviewed by Daniel Murrell, M.
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