Blood dripping during bowel movement can be checked with colonoscopy in hospitals. Generally, it is caused by anal fissure and hemorrhoids. In daily life, one should develop good eating habits, drink plenty of water, consume more fresh vegetables and fruits, keep the intestines unobstructed, and avoid or reduce eating spicy and stimulating foods. Here are the reasons for blood dripping during bowel movement:
1. Hemorrhoids The primary reason for blood dripping during bowel movement is hemorrhoids. Simple internal hemorrhoids are painless and only cause a sensation of heaviness. Pain occurs only when thrombosis, incarceration, or infection occurs. External hemorrhoids usually have no special symptoms, but may experience swelling and pain when thrombosis or inflammation occurs. Hemorrhoids can be treated surgically.
2. Anal Fissure Anal fissure can directly lead to blood in stool, with bright red blood dripping or blood stains after wiping with toilet paper. It is stimulated by pollutants in feces and causes severe anal pain after defecation. The pain may last for several minutes or hours after defecation, and severe pain may last longer.
3. Rectal and Colonic Polyps The blood is bright red, painless, and does not mix with stool. Rectal polyps and sigmoid colon polyps can cause bleeding in stool. After defecation, there may be bright red or dark red blood outside the stool, and rectal polyps may occasionally be accompanied by polyp protrusion.
5. Colorectal Cancer The blood is bright red or dark red, appearing as drops on the surface of stool; in the late stage, it often presents with purulent bloody stool, anal and rectal prolapse, weight loss, and changes in bowel habits.
