Blood in Stool: Is It Hemorrhoids or Something Else? - Surgery

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Rectal bleeding


Hello, I am a college student with irregular eating habits and often eat out.
Two weeks ago, I noticed bright red blood in my stool, but the amount was small, and the stool color was normal.
I have also experienced a decrease in bowel movements compared to usual.
Shortly after, my menstrual period started, and I initially thought the bleeding was related to my period.
However, a few days after my period ended, I noticed that the blood in my stool had not stopped.
Could this be hemorrhoids, or is it indicative of another condition? If further examination is needed, would a colonoscopy be necessary?

Xiao Zhi, 10~19 year old female. Ask Date: 2016/04/17

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 hemorrhoidal suppositories at the pharmacy for use.
It is best not to take stool softeners indiscriminately; at this age, increasing dietary fiber and hydration should be sufficient.
If bleeding persists, it is advisable to consult a physician for evaluation.
Although the likelihood of developing colorectal cancer at the age of 19 is not zero, it is generally very low, and a colonoscopy is likely unnecessary.

Reply Date: 2016/04/17

More Info


When it comes to the presence of blood in stool, it can be a concerning symptom that warrants careful evaluation. Based on your description, the fresh red blood during bowel movements, along with the normal color of the stool, suggests that the bleeding is likely originating from the lower gastrointestinal tract, which includes the rectum and anus. The most common causes of such bleeding include hemorrhoids, anal fissures, or less commonly, conditions like diverticular disease or colorectal polyps.

Hemorrhoids are swollen veins in the lower rectum or anus that can cause bright red blood during bowel movements. They are often associated with straining during defecation, prolonged sitting, or chronic constipation. Given that you mentioned irregular eating habits and possibly less fiber intake due to eating out, this could contribute to constipation and straining, leading to hemorrhoids.

Anal fissures are small tears in the lining of the anus, which can also result in bright red blood during bowel movements. They are typically associated with pain during and after bowel movements, which may not have been mentioned in your case.

Since you also noted that the bleeding continued after your menstrual period, it is important to consider that while hemorrhoids are a common cause, other conditions should not be ruled out without further investigation.
Other potential causes of rectal bleeding include:
- Diverticulosis: Small pouches that can form in the colon wall and may bleed.

- Colorectal polyps or cancer: While less common, these can also present with rectal bleeding, especially in individuals over 50 or with a family history of colorectal cancer.

- Inflammatory bowel disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause gastrointestinal bleeding.

Given your symptoms, it is advisable to seek medical attention. A healthcare provider may recommend a colonoscopy or sigmoidoscopy to visualize the lower gastrointestinal tract and identify the source of the bleeding. These procedures are generally safe and can provide valuable information about your gastrointestinal health.

In addition to the colonoscopy, your doctor may also consider other tests such as a complete blood count (CBC) to check for anemia, which can occur if there is significant blood loss.
In the meantime, maintaining a diet high in fiber, staying hydrated, and avoiding straining during bowel movements can help alleviate symptoms if hemorrhoids or anal fissures are the cause.
In summary, while hemorrhoids are a likely cause of your symptoms, it is essential to consult with a healthcare professional for a thorough evaluation and appropriate management. Early diagnosis and treatment can help prevent complications and ensure your overall health.

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