Painless Rectal Bleeding: When to See a Doctor - Gastroenterology and Hepatology

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Painless rectal bleeding?


I experience bleeding when wiping after a bowel movement.
Previously, it was painful, but now there is no pain, just bleeding.
My sister also experiences bleeding; is there a connection? Should I see a doctor? It has been several days! Thank you.

MOMO, 20~29 year old female. Ask Date: 2005/12/26

Dr. Lin Minghui reply Gastroenterology and Hepatology


Hello, the presence of blood during bowel wiping indicates possible lesions in the anus or rectum, commonly due to hemorrhoids or anal fissures.
Less common causes may include inflammation or tumors of the colon or rectum.
Symptoms of hemorrhoids or anal fissures can sometimes be accompanied by pain, but not always.
The severity of hemorrhoids and anal fissures can be classified into different grades.
It is advisable to avoid spicy foods, drink plenty of water, consume more fiber, and prevent constipation in daily life.
Frequent anal bleeding can lead to anemia, so it is recommended to see a doctor for a definitive diagnosis.
Sincerely, Dr.
Lin Ming-Hui, Internal Medicine.

Reply Date: 2005/12/26

More Info


Painless rectal bleeding can be concerning, and it is important to understand the potential causes and when to seek medical attention. The fact that you previously experienced pain during bowel movements and now have painless bleeding is noteworthy. While the absence of pain might seem like a positive sign, it does not necessarily indicate that the situation is safe or benign.

Rectal bleeding can arise from various conditions, some of which may require medical intervention. Common causes of painless rectal bleeding include hemorrhoids, anal fissures, diverticular disease, and colorectal polyps. Hemorrhoids are swollen blood vessels in the rectal area that can bleed, especially during bowel movements. Anal fissures, which are small tears in the lining of the anus, can also cause bleeding and pain. However, if the bleeding is now painless, it could suggest that the initial fissure has healed or that the bleeding is due to another cause, such as hemorrhoids.

Another possibility is diverticular disease, where small pouches form in the colon wall and can become inflamed or bleed. Colorectal polyps, which are growths on the lining of the colon, can also lead to bleeding and may be precursors to colorectal cancer. It is essential to note that while some causes of rectal bleeding are benign, others can be serious and require prompt evaluation.

Regarding your sister also experiencing rectal bleeding, it is important to consider family history and genetic predispositions to certain gastrointestinal conditions. While it may not be directly related, having a family member with similar symptoms can warrant further investigation.

Given that you have been experiencing this symptom for several days, it is advisable to see a doctor. A healthcare professional can perform a thorough evaluation, which may include a physical examination, a digital rectal exam, and possibly further diagnostic tests such as a colonoscopy or imaging studies. These tests can help identify the underlying cause of the bleeding and determine the appropriate treatment.

In summary, while painless rectal bleeding may not always indicate a severe condition, it is essential to take it seriously, especially since it has persisted for several days. Consulting a healthcare provider will help ensure that any potential issues are addressed promptly, and appropriate care is provided. Do not hesitate to seek medical advice, as early intervention can lead to better outcomes and peace of mind.

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