Blood on Toilet Paper: Anal Bleeding Causes - Surgery

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Blood on toilet paper after wiping the anus?


Hello, doctor.
For the past two to three weeks, I have frequently noticed blood during bowel movements, although it doesn't happen every time.
I do not have a habit of constipation, as I have bowel movements at least every two days.
The stool is shaped like a straight, light yellow line, and I haven't observed any obvious blood in the toilet.
However, there is blood when I wipe my bottom, which is bright red.
Sometimes I experience pain in the anus during bowel movements, and sometimes I do not.
Given this situation, could it be an anal fissure or hemorrhoids? Or could there be an issue with my colon?

Chen's, 20~29 year old female. Ask Date: 2017/04/07

Dr. Ke Fangxu reply Surgery


Based on your description, it seems more like a typical symptom of an anal fissure, which is characterized by pain during bowel movements accompanied by slight bleeding.
The common causes are often constipation or diarrhea.
The fundamental treatment is to improve bowel habits, and warm sitz baths can also be beneficial.
You can purchase hemorrhoid suppositories at the pharmacy for additional relief.
Although the risk of developing colorectal cancer at the age of 27 is not zero, it is generally considered relatively low.
Your symptoms appear more consistent with hemorrhoids.
It is advisable to maintain a light diet and good lifestyle habits, avoiding spicy, irritating, and greasy foods.
If symptoms persist without improvement, it is best to consult a physician for evaluation.

Reply Date: 2017/04/07

More Info


When it comes to the presence of blood on toilet paper after bowel movements, it can understandably cause concern. The bright red blood you are observing is often associated with issues in the lower gastrointestinal tract, particularly in the anal area. The two most common causes of such bleeding are hemorrhoids and anal fissures.

Hemorrhoids are swollen veins in the lower rectum and anus, similar to varicose veins. They can be internal (inside the rectum) or external (under the skin around the anus). Symptoms of hemorrhoids can include painless bleeding during bowel movements, itching, and discomfort. The blood is typically bright red, indicating that it is fresh and has not been digested, which is consistent with your description. Hemorrhoids can be caused by increased pressure in the lower rectum due to factors such as straining during bowel movements, prolonged sitting, or even pregnancy.

Anal fissures, on the other hand, are small tears in the lining of the anus. They can cause sharp pain during and after bowel movements, and bleeding may occur as well. The blood from an anal fissure is usually bright red and may be seen on the toilet paper or on the stool itself. Fissures are often caused by passing hard or large stools, but they can also occur in individuals with diarrhea or inflammatory bowel diseases.

Given that you mentioned experiencing pain during bowel movements at times, this could suggest the presence of an anal fissure. However, it is also possible to have both conditions simultaneously.
While hemorrhoids and anal fissures are the most common causes of rectal bleeding, other potential causes could include:
1. Diverticular Disease: Small pouches that can form in the walls of the colon can sometimes bleed.

2. Colorectal Polyps or Cancer: Though less common, these can also present with rectal bleeding, especially in older adults or those with risk factors.

3. Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease or ulcerative colitis can lead to rectal bleeding.

In your case, since you have not experienced constipation and your bowel movements are regular, it is less likely that your bleeding is due to constipation-related issues. However, it is essential to consider all possibilities.

Recommendations:
1. Dietary Changes: Ensure you are consuming a high-fiber diet to help soften stools and reduce straining. Foods rich in fiber include fruits, vegetables, whole grains, and legumes.

2. Hydration: Drink plenty of fluids to help maintain soft stools.

3. Avoid Straining: When using the bathroom, try to relax and avoid straining, as this can exacerbate hemorrhoids and fissures.

4. Over-the-Counter Treatments: You may consider using topical treatments for hemorrhoids or sitz baths to alleviate discomfort.

5. Consult a Healthcare Provider: Since you have been experiencing this issue for a few weeks, it is advisable to consult a healthcare professional for a thorough evaluation. They may perform a physical examination and possibly recommend further tests, such as a colonoscopy, to rule out more serious conditions.

In summary, while hemorrhoids and anal fissures are the most likely culprits for the symptoms you are experiencing, it is crucial to seek medical advice to ensure an accurate diagnosis and appropriate treatment. Early intervention can help prevent complications and improve your quality of life.

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