What causes frequent rectal bleeding?

Jun 17, 2024 Source: Cainiu Health
Disease description:

Recently, I've noticed some bleeding during bowel movements. The amount isn't large, but I'm a bit concerned. Could you please tell me what could cause frequent rectal bleeding?

Doctor's answer (1)
Dr. Li Jingxiang
Frequent rectal bleeding may be caused by various factors, primarily including the following: 1. Hemorrhoids: Hemorrhoids are a common cause of rectal bleeding, especially internal hemorrhoids, which may lead to dripping blood during or after defecation. The blood typically does not mix with the stool. Hemorrhoids develop due to swelling and thrombosis of blood vessels around the anus or in the rectum. 2. Anal fissures: Hard stools or straining during bowel movements can cause tears in the anal skin, resulting in bleeding accompanied by severe pain. 3. Intestinal diseases: Conditions such as ulcerative colitis, intestinal tumors, and rectal polyps may damage the intestinal mucosa, causing blood to appear in the stool. 4. Medication factors: Long-term use of anticoagulant drugs such as aspirin may increase the risk of bleeding. It is recommended that individuals experiencing frequent rectal bleeding seek timely medical attention to determine the underlying cause through professional examinations and receive appropriate treatment. Attention should also be paid to adjusting dietary habits, maintaining regular bowel movements, and avoiding excessive straining during defecation to reduce the likelihood of bleeding.