Blood in Stool: Causes and When to Seek Medical Help - Gastroenterology and Hepatology

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Rectal bleeding


Hello, Dr.
Chen...
I would like to ask you about a situation I've been experiencing for the past three days.
After having a bowel movement, I've noticed a small amount of blood (it is bright red while the stool is brown).
I was wondering if this could be due to not having a bowel movement for a long time, which might have caused bleeding on the first day, and then I continued to see some blood after bowel movements for the next two days.
Additionally, there was one instance where I noticed blood while urinating, and it also came from the rectum.
I would like to know if this is serious and what kind of condition it might be.
Is it necessary for me to seek medical attention?

lucky, 20~29 year old female. Ask Date: 2005/03/24

Dr. Chen Zhiping reply Gastroenterology and Hepatology


Hello, rectal bleeding is most commonly caused by hemorrhoids or anal fissures, which are related to poor bowel habits and constipation.
Of course, issues such as inflammation or tumors in the rectum are also possible, but they are less common.
To determine the cause, it is essential to visit a gastroenterologist or a colorectal surgeon for an examination (such as a sigmoidoscopy).
Sincerely, Dr.
Chen Zhi-Ping.

Reply Date: 2005/03/24

More Info


When it comes to the presence of blood in stool, it is essential to understand that this symptom can arise from various causes, some of which may require immediate medical attention. The fact that you have observed fresh red blood in your stool, along with the brown color of the stool itself, suggests that the bleeding is likely occurring in the lower gastrointestinal tract, such as the rectum or anus. This is often associated with conditions such as hemorrhoids, anal fissures, or diverticular disease.

1. Potential Causes:
- Hemorrhoids: Swollen veins in the lower rectum or anus that can cause bleeding, especially during bowel movements. This is one of the most common causes of bright red blood in stool.

- Anal Fissures: Small tears in the lining of the anus, often caused by passing hard or large stools, can lead to bleeding and pain during bowel movements.

- Diverticular Disease: This includes diverticulosis and diverticulitis, where small pouches form in the colon wall and can become inflamed or bleed.

- Colorectal Polyps or Cancer: While less common, these can also cause bleeding and should be ruled out, especially if you have risk factors or a family history of colorectal cancer.

2. When to Seek Medical Help:
- If the bleeding persists for more than a couple of days, it is crucial to seek medical attention.
- If you experience significant pain, changes in bowel habits, or any other concerning symptoms such as weight loss or fatigue, these are also indicators that you should consult a healthcare professional.

- Additionally, if you notice blood in your urine, as you mentioned, this could indicate a separate issue that may require evaluation, such as a urinary tract infection or kidney stones.

3. Self-Care and Management:
- If you suspect that constipation is contributing to your symptoms, increasing your fiber intake through fruits, vegetables, and whole grains, along with adequate hydration, can help soften stools and reduce straining during bowel movements.

- Over-the-counter treatments for hemorrhoids or topical analgesics for anal fissures may provide temporary relief, but they do not replace the need for medical evaluation if symptoms persist.

4. Importance of Evaluation:
- A healthcare provider may perform a physical examination, and possibly recommend further tests such as a colonoscopy, especially if you are over 50 or have risk factors for colorectal disease. This is crucial for ruling out serious conditions and determining the appropriate treatment.

In summary, while the presence of blood in stool can often be attributed to benign conditions like hemorrhoids or fissures, it is essential to monitor your symptoms closely. Given that you have experienced this for three days and have also noted blood during urination, it is advisable to seek medical attention promptly to ensure a thorough evaluation and appropriate management. Early intervention can help address any underlying issues and prevent potential complications.

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