Bright Red Blood When Wiping: Causes and When to See a Doctor - Surgery

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Blood on toilet paper after wiping can indicate several potential issues, such as hemorrhoids, anal fissures, or other gastrointestinal conditions


Hello doctor, this morning when I had a bowel movement, I noticed bright red blood on the toilet paper, but there was no blood in the toilet bowl.
The shape of the stool was normal and the bowel movement was smooth without any abdominal pain.
Could you please tell me what conditions might cause this? Do I need to visit a clinic for an examination? Thank you.

An An, 20~29 year old female. Ask Date: 2016/11/30

Dr. Chen Jiaming reply Surgery


Although the most common causes of blood on wiping after a bowel movement are hemorrhoids or damage to the intestinal mucosa (such as after multiple episodes of diarrhea), it is important to rule out the possibility of benign or malignant tumors in the intestines or other lesions.
If symptoms such as rectal bleeding persist despite the use of stool softeners and dietary adjustments (such as increasing water intake, consuming more high-fiber fruits and vegetables, and modifying bowel posture habits), it is advisable to consult a colorectal surgeon or gastroenterologist for a digital rectal examination or colonoscopy for further evaluation.

Reply Date: 2016/11/30

More Info


Seeing bright red blood when wiping after a bowel movement can be concerning, but it is important to understand that it is not always indicative of a serious condition. The presence of bright red blood typically suggests that the bleeding is coming from the lower gastrointestinal tract, particularly the rectum or anus. Here are some common causes and considerations regarding this symptom:
1. Hemorrhoids: One of the most common causes of bright red blood on toilet paper is hemorrhoids. These are swollen veins in the lower rectum or anus that can become inflamed and bleed, especially during bowel movements. Hemorrhoids can be internal or external, and while they can be uncomfortable, they are usually not serious.

2. Anal Fissures: Another potential cause is an anal fissure, which is a small tear in the lining of the anus. This can occur due to passing hard stools or straining during bowel movements. Anal fissures can cause sharp pain during and after bowel movements, along with bright red blood.

3. Diverticular Disease: Diverticulosis, which involves the formation of small pouches in the colon wall, can lead to diverticulitis if these pouches become inflamed or infected. This condition can also cause rectal bleeding.

4. Colorectal Polyps or Cancer: While less common, polyps (growths on the lining of the colon) or colorectal cancer can also cause rectal bleeding. If you have a family history of colorectal cancer or other risk factors, this is something to consider.

5. Gastrointestinal Infections: Certain infections can lead to inflammation and bleeding in the gastrointestinal tract, which may result in blood being present in the stool or on toilet paper.

Given that your bowel movements have been normal and you are not experiencing pain or other symptoms, it may not be an urgent situation. However, it is essential to monitor the situation closely. Here are some recommendations:
- Keep Track of Symptoms: Note how often you see blood, the amount, and any accompanying symptoms such as pain, changes in bowel habits, or weight loss.

- Dietary Changes: Ensure you are consuming enough fiber to prevent constipation, which can exacerbate hemorrhoids and fissures. Staying hydrated is also crucial.

- Avoid Straining: If you experience constipation, try to avoid straining during bowel movements, as this can worsen hemorrhoids and fissures.

- Consult a Doctor: If the bleeding persists, increases in frequency, or is accompanied by other concerning symptoms (such as abdominal pain, changes in bowel habits, or weight loss), it is advisable to see a healthcare provider. They may perform a physical examination and possibly recommend further tests, such as a colonoscopy, to rule out more serious conditions.

In summary, while bright red blood when wiping can often be attributed to benign causes like hemorrhoids or anal fissures, it is essential to remain vigilant. If the symptoms persist or worsen, seeking medical advice is the best course of action to ensure proper diagnosis and treatment.

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