Blood in Stool: Causes and When to Seek Help - Surgery

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Rectal bleeding


Doctor, today when I had a bowel movement, the process was smooth without any straining or pain.
However, after wiping with toilet paper, I noticed a bit of redness on the tissue.
What could this be due to?

A He, 20~29 year old female. Ask Date: 2017/08/09

Dr. Chen Jiaming reply Surgery


Based on your overly simplistic description, there are too many possible factors and diagnoses to make any assumptions.
I sincerely apologize.

Reply Date: 2017/08/09

More Info


Blood in stool can be a concerning symptom, and it's important to understand the potential causes and when to seek medical attention. In your case, you mentioned that the bowel movement was smooth and painless, but you noticed some red blood on the toilet paper afterward. This can be indicative of several conditions, some of which are benign, while others may require medical evaluation.

One common cause of bright red blood on toilet paper is hemorrhoids. Hemorrhoids are swollen blood vessels in the rectal area that can bleed during bowel movements, especially if there is straining or if the stool is hard. Since you mentioned that your bowel movement was smooth, it’s possible that the blood could be due to minor irritation or a small tear (fissure) in the anal area, which can also cause bright red blood.

Another potential cause could be anal fissures, which are small tears in the lining of the anus that can occur during bowel movements. These can be quite painful, but if you did not experience pain, it might be less likely.
In some cases, blood in the stool can be a sign of more serious conditions, such as diverticular disease, polyps, or even colorectal cancer, especially if the bleeding is persistent or accompanied by other symptoms like changes in bowel habits, weight loss, or abdominal pain.
Given that you only noticed blood on the toilet paper and did not experience any pain or discomfort during the bowel movement, it may not be an immediate cause for alarm. However, it is crucial to monitor the situation. If the bleeding continues, increases in amount, or if you start experiencing other symptoms, it would be wise to consult a healthcare professional.
In terms of when to seek help, you should consider making an appointment with a doctor if:
1. The bleeding persists for more than a few days.

2. You notice a significant amount of blood in your stool.

3. You experience abdominal pain, cramping, or changes in your bowel habits.

4. You have any other concerning symptoms, such as weight loss or fatigue.

In summary, while occasional bright red blood on toilet paper can often be attributed to benign causes like hemorrhoids or minor anal fissures, it is essential to remain vigilant. Keeping track of any changes in your symptoms and seeking medical advice when necessary is the best approach to ensure your health and peace of mind.

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