Rectal Bleeding: Causes and Concerns After Prolonged Bowel Movements - Surgery

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Prolonged bleeding


Hello Doctor, I often use my phone while in the bathroom, which causes me to take a long time to flush after having a bowel movement.
I noticed that there was blood at the edge of the stool at the bottom of the toilet, and the color was somewhat dark, leaning towards black.
The next day, I checked and saw that there was no blood around the initial stool, but after sitting for a while, a liquid similar to blood would appear.
When I wipe, I don’t see any blood at all.
For the past few days, I have been experiencing mild abdominal pain during the day.
I usually drink very little water and have a preference for heavily seasoned food.
I’m not sure if this is related.

Karin, 10~19 year old female. Ask Date: 2016/06/07

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.
Warm sitz baths may also help alleviate symptoms.
You can purchase over-the-counter hemorrhoid suppositories for use.
It is best not to take stool softeners indiscriminately; at this age, increasing dietary fiber and hydration should be sufficient.
Hemorrhoidal bleeding in such a young individual is often related to poor lifestyle and dietary habits.
If these can be improved, the issues of bleeding and abdominal pain should resolve.
However, if bleeding persists, it is advisable to consult a physician for evaluation.

Reply Date: 2016/06/07

More Info


Rectal bleeding can be a concerning symptom, and understanding its potential causes is essential for addressing the issue effectively. Based on your description, it seems that you have experienced rectal bleeding after prolonged bowel movements, which can be attributed to several factors, including dietary habits, bowel habits, and possibly underlying conditions.

Firstly, the fact that you mentioned the blood being dark and somewhat black could indicate that the bleeding might originate from higher up in the gastrointestinal tract, as dark blood often suggests that it has been digested. However, if the blood is bright red, it typically indicates that the source is closer to the rectum or anus, such as from hemorrhoids, anal fissures, or other rectal issues. Given that you noted the blood appeared after prolonged sitting on the toilet, it is possible that you may be experiencing anal fissures, which are small tears in the lining of the anus that can occur due to straining during bowel movements or passing hard stools.

Your mention of having a low water intake and a preference for heavy, flavorful foods could contribute to constipation, which in turn can lead to harder stools and increased straining during bowel movements. This cycle can exacerbate issues like hemorrhoids or fissures, leading to bleeding. Additionally, if you are spending extended periods on the toilet, this can increase pressure in the anal region, further aggravating any existing conditions.

The presence of abdominal pain, even if it is mild, should not be overlooked. It could indicate that your gastrointestinal system is under stress, possibly due to constipation or dietary choices. A diet low in fiber and fluids can lead to harder stools and increased difficulty during bowel movements, which can result in pain and bleeding.

To address these issues, consider the following recommendations:
1. Increase Fluid Intake: Aim to drink at least 8-10 glasses of water daily. Proper hydration helps soften stools and promotes regular bowel movements.

2. Dietary Adjustments: Incorporate more fiber-rich foods into your diet, such as fruits, vegetables, whole grains, and legumes. Fiber helps to bulk up stools and makes them easier to pass, reducing the risk of straining.

3. Limit Prolonged Sitting: Try to avoid spending excessive time on the toilet. If you find yourself scrolling on your phone, set a timer to limit your time spent sitting.

4. Monitor Symptoms: Keep track of your bowel habits, the consistency of your stools, and any associated symptoms like pain or changes in bleeding patterns. This information can be valuable for healthcare providers.

5. Seek Medical Attention: Given your symptoms, especially the presence of dark blood and abdominal pain, it is advisable to consult a healthcare professional. They may recommend a physical examination, possibly including a rectal exam or imaging studies, to determine the exact cause of your bleeding.

In conclusion, while rectal bleeding can often be attributed to benign causes such as hemorrhoids or fissures, it is crucial to rule out more serious conditions. Making dietary changes, improving hydration, and seeking medical advice are important steps in managing your symptoms and ensuring your gastrointestinal health.

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