Blood in Stool: Should You Worry and When to Get a Colonoscopy? - Gastroenterology and Hepatology

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Blood in the stool?


Today, I noticed a small blood spot about 0.2 centimeters in size in my stool, and there were also blood streaks about the size of a grain of sand in the intestinal fluid.
I would like to know what this condition might indicate.
Do I need to undergo another colonoscopy? I had a colonoscopy on March 1st of this year, which showed no polyps, no tumors, but there were diverticula and internal hemorrhoids.
I hope you can help clarify this for me.
Thank you.

A-Jia, 40~49 year old female. Ask Date: 2023/08/10

Dr. Hu Guozheng reply Gastroenterology and Hepatology


Colonoscopy is generally recommended every 3 to 5 years.
You can consult your physician regarding the frequency of follow-up examinations.
It is advisable to monitor if straining during bowel movements causes harder stools to scrape against the anal canal, which may lead to minor bleeding with mucus.
If you have concerns, please seek medical evaluation.
Thank you.

Reply Date: 2023/08/10

More Info


When it comes to the presence of blood in your stool, it is understandable to feel concerned. Blood in the stool can be indicative of various conditions, some of which may require immediate medical attention. Given your recent history of a colonoscopy in March, where no polyps or tumors were found, and the identification of diverticula and internal hemorrhoids, it is essential to consider the context of your current symptoms.

The small blood spot (approximately 0.2 cm) and the blood streaks you observed could be attributed to several factors. Given your history of internal hemorrhoids, it is quite possible that the bleeding is related to this condition. Hemorrhoids can cause bright red blood on the stool or toilet paper, especially during bowel movements. The presence of diverticula, which are small pouches that can form in the colon wall, may also contribute to gastrointestinal bleeding, although this is less common.

In general, if the bleeding is minimal and you are not experiencing any other alarming symptoms—such as significant abdominal pain, changes in bowel habits, or signs of anemia (like dizziness or fatigue)—it may not be an immediate cause for alarm. However, it is crucial to monitor the situation closely. If the bleeding persists, increases in volume, or is accompanied by other concerning symptoms, you should seek medical attention promptly.

As for whether you need another colonoscopy, it largely depends on the frequency and severity of the bleeding. Since you had a colonoscopy just a few months ago, your doctor may suggest a conservative approach, especially if the bleeding is minor and you have a known history of hemorrhoids. However, if you experience recurrent bleeding or if the blood becomes more substantial, a follow-up colonoscopy may be warranted to rule out any new developments or complications.

In terms of management, here are some recommendations:
1. Dietary Adjustments: Ensure you are consuming a high-fiber diet to promote regular bowel movements and reduce straining, which can exacerbate hemorrhoids. Foods rich in fiber include fruits, vegetables, whole grains, and legumes.

2. Hydration: Drink plenty of fluids to help soften your stool, making it easier to pass.

3. Avoid Straining: When you feel the urge to have a bowel movement, try to go as soon as possible. Avoid sitting on the toilet for extended periods, as this can increase pressure on the rectal area.

4. Over-the-Counter Treatments: You may consider using over-the-counter topical treatments for hemorrhoids, such as creams or suppositories, to alleviate discomfort and reduce inflammation.

5. Monitor Symptoms: Keep track of any changes in your symptoms, including the frequency and amount of blood, as well as any new symptoms that may arise.

6. Consult Your Doctor: If you have any doubts or if the bleeding continues, do not hesitate to reach out to your healthcare provider for further evaluation and guidance.

In conclusion, while the presence of a small amount of blood in your stool can be concerning, it is essential to consider your overall health history and current symptoms. Monitoring the situation and maintaining open communication with your healthcare provider will help ensure that any potential issues are addressed promptly and appropriately.

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