Bright Red Blood After Bowel Movements: Causes and Concerns - Surgery

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Blood in the stool?


Hello doctor, I have a question: After I have a bowel movement, I notice bright red blood when I wipe, but it disappears after a couple of wipes.
There are no traces of blood in the toilet.
What could this symptom indicate?

YY, 10~19 year old female. Ask Date: 2016/05/03

Dr. Yu Mingchang reply Surgery


Hello: Eat more fruits and vegetables, but if you have indoor moles that are bleeding, the Ministry of Health and Welfare Changhua Hospital is concerned about you.

Reply Date: 2016/05/03

More Info


When you notice bright red blood after a bowel movement, it can understandably cause concern. The presence of bright red blood typically indicates that the bleeding is occurring in the lower gastrointestinal tract, particularly in the rectum or anus. This is in contrast to darker blood, which may suggest bleeding from higher up in the digestive tract, such as the stomach or small intestine.

There are several potential causes for bright red blood in your stool or on toilet paper. One common cause is hemorrhoids, which are swollen veins in the rectal area that can bleed during bowel movements, especially if there is straining or constipation involved. Another possibility is anal fissures, which are small tears in the lining of the anus that can occur due to passing hard stools. Both conditions are often accompanied by minimal pain or discomfort, especially if the bleeding is mild.

In your case, since you mentioned that the blood was only present when wiping and that there were no traces in the toilet bowl, it suggests that the bleeding is likely localized to the anal area rather than from deeper within the intestines. This is often a reassuring sign, but it is still important to monitor the situation.

Other potential causes of bright red blood can include diverticular disease, which involves small pouches forming in the colon, or more serious conditions such as colorectal polyps or cancer, especially if there are other accompanying symptoms like changes in bowel habits, weight loss, or persistent abdominal pain. However, these conditions are less common, especially in younger individuals.

Given that you have also experienced mild constipation, it is advisable to address this issue as it may contribute to the bleeding. Increasing your fluid intake, consuming a diet rich in fiber, and possibly using over-the-counter stool softeners can help alleviate constipation and reduce the risk of further irritation or injury to the anal area.

If the bleeding persists, increases in volume, or is accompanied by other concerning symptoms such as severe pain, changes in bowel habits, or any signs of systemic illness (like fever or weight loss), it is crucial to seek medical attention. A healthcare provider may perform a physical examination and possibly recommend further investigations, such as a colonoscopy, to rule out any serious underlying conditions.

In summary, while bright red blood after a bowel movement can often be attributed to benign causes like hemorrhoids or anal fissures, it is essential to remain vigilant. Monitoring your symptoms and making dietary adjustments can be beneficial, but do not hesitate to consult a healthcare professional if you have any concerns or if the symptoms persist. Your health and peace of mind are paramount, and a medical evaluation can provide clarity and reassurance.

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