What causes pain in the anus during bowel movements?
Disease description:
My younger sister is having difficulty defecating, experiences severe anal pain, and there's blood in her stool. This has been going on for over two weeks. What could be causing anal pain during bowel movements?
Doctor's answer (1)
Dr. Zhao Haiming
Pain during defecation is usually caused by anal fissures, hemorrhoids, etc. Anal fissure is a common anorectal disease, which may be accompanied by bloody stools or blood-streaked toilet paper. The common cause is injury to the anal canal due to constipation or diarrhea during bowel movements. Hemorrhoids result from congestion and swelling of the veins in the lower rectum or anal canal, causing bleeding and pain during defecation. Hemorrhoids can be classified into internal hemorrhoids, external hemorrhoids, and mixed hemorrhoids.
