Blood After Bowel Movement: Causes and When to Seek Help - Surgery

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Blood after bowel movement?


Hello, doctor.
For the past three days, I have noticed blood dripping from my anus after having a bowel movement.
I have experienced this a few times in the past, but it went away and has now returned.
I would like to ask how to resolve this issue.
Do I need to seek medical attention?

Xiao Gaozi, 10~19 year old female. Ask Date: 2015/10/21

Dr. Ke Fangxu reply Surgery


This situation likely indicates a higher possibility of hemorrhoidal bleeding.
As long as there is no further bleeding, it should not be a concern.
It is recommended to avoid constipation during this period and to shorten the time spent on bowel movements.
You can also purchase hemorrhoidal suppositories at the pharmacy for use.
However, if bleeding persists, it is best to consult a physician for evaluation.

Reply Date: 2015/10/21

More Info


Experiencing blood after a bowel movement can be concerning and may indicate various underlying issues. The presence of blood can be classified into two categories: bright red blood, which typically suggests bleeding from the lower gastrointestinal tract, and darker blood, which may indicate bleeding from higher up in the digestive system. Here are some common causes and considerations regarding your situation.


Common Causes of Blood After Bowel Movements
1. Hemorrhoids: One of the most common causes of bright red blood on toilet paper or in the stool is hemorrhoids. These are swollen veins in the rectum or anus that can bleed during bowel movements, especially if straining occurs.

2. Anal Fissures: Small tears in the lining of the anus, often caused by passing hard stools, can also lead to bright red blood. These fissures can be quite painful and may cause discomfort during bowel movements.

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 cause bleeding.

4. Colorectal Polyps or Cancer: While less common, polyps (growths on the colon lining) or colorectal cancer can cause bleeding. This is particularly concerning if the bleeding is persistent or accompanied by other symptoms such as weight loss or changes in bowel habits.

5. Gastrointestinal Infections: Certain infections can lead to inflammation and bleeding in the gastrointestinal tract, resulting in blood in the stool.


When to Seek Medical Help
It is essential to seek medical attention if you experience any of the following:
- Persistent Bleeding: If the bleeding continues over several days or is recurrent.

- Large Amounts of Blood: If you notice a significant amount of blood, especially if it is bright red.

- Accompanying Symptoms: If you experience other symptoms such as severe abdominal pain, dizziness, fainting, or changes in bowel habits (like diarrhea or constipation).

- History of Gastrointestinal Issues: If you have a history of gastrointestinal diseases or conditions that could complicate your situation.


Steps to Take
1. Consult a Healthcare Provider: Given that you have experienced this issue multiple times, it is advisable to consult a healthcare provider. They may perform a physical examination, review your medical history, and possibly recommend diagnostic tests such as a colonoscopy to determine the cause of the bleeding.

2. Maintain a Healthy Diet: Eating a high-fiber diet can help prevent constipation and reduce straining during bowel movements, which may alleviate symptoms related to hemorrhoids or fissures.

3. Stay Hydrated: Drinking plenty of fluids can help soften stools and promote regular bowel movements.

4. Avoid Straining: If you experience constipation, consider using stool softeners or mild laxatives as recommended by a healthcare provider.

5. Monitor Symptoms: Keep track of any changes in your symptoms, including the frequency and amount of bleeding, and report these to your doctor.

In conclusion, while occasional blood after a bowel movement can be due to benign causes like hemorrhoids or fissures, it is crucial to monitor the situation closely and seek medical advice, especially given your history of similar episodes. Early intervention can help address any underlying issues and prevent potential complications.

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