Blood in Stool: What You Need to Know - Surgery

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Hello doctor, there is blood in my stool?


Hello doctor, I have been experiencing blood in my stool for a week now, but I don't feel any discomfort in my abdomen or anus.
After I finish a bowel movement, there is dripping blood, which is bright red and not thick.
What should I be aware of, or could this be a sign of any particular condition?

Xiao Ming, 20~29 year old female. Ask Date: 2016/03/28

Dr. Yu Mingchang reply Surgery


Hello; consuming more vegetables and water may lead to internal hemorrhoid bleeding.
Please consider visiting the Department of Colorectal Surgery at Changhua Hospital, Ministry of Health and Welfare for your health concerns.

Reply Date: 2016/03/28

More Info


When it comes to the presence of blood in stool, it's important to approach the situation with caution and seek medical advice. The fact that you have been experiencing this symptom for a week is significant, even if you do not feel any pain or discomfort. The bright red color of the blood suggests that it is likely coming from the lower gastrointestinal tract, such as the rectum or anus, rather than from higher up in the digestive system, where the blood would typically appear darker.

There are several potential causes for blood in the stool, and while some may be benign, others could indicate more serious conditions. Here are some common causes:
1. Hemorrhoids: These are swollen veins in the lower rectum or anus that can cause bleeding, especially during bowel movements. The blood is usually bright red and may be seen on the toilet paper or in the toilet bowl.

2. Anal fissures: Small tears in the lining of the anus can occur, often due to passing hard stools. This can lead to bright red blood during bowel movements.

3. Diverticular disease: Diverticula are small pouches that can form in the walls of the colon. If they become inflamed or infected, they can cause bleeding.

4. Colorectal polyps or cancer: Polyps are growths on the lining of the colon that can bleed. Some polyps can develop into cancer over time, which is why any bleeding should be evaluated by a healthcare professional.

5. Gastrointestinal infections: Certain infections can lead to inflammation and bleeding in the gastrointestinal tract.

6. Inflammatory bowel disease (IBD): Conditions such as Crohn's disease or ulcerative colitis can cause inflammation and bleeding in the intestines.

Given that you have been experiencing this symptom for a week, it is crucial to consult with a healthcare provider. They may recommend a physical examination, a review of your medical history, and possibly diagnostic tests such as a colonoscopy or imaging studies to determine the source of the bleeding.

In the meantime, here are some things to consider:
- Monitor your symptoms: Keep track of any changes in the color or amount of blood, as well as any new symptoms such as abdominal pain, changes in bowel habits, or weight loss.

- Avoid self-diagnosis: While it can be tempting to search for answers online, it is essential to rely on professional medical advice for an accurate diagnosis and treatment plan.

- Stay hydrated: If you are experiencing any changes in your bowel habits, ensure you are drinking enough fluids to stay hydrated.

- Dietary considerations: A diet high in fiber can help prevent constipation and may reduce the risk of hemorrhoids and fissures. However, if you are experiencing significant bleeding, it may be best to avoid certain foods until you have consulted with a healthcare provider.

In conclusion, while the absence of pain may seem reassuring, the presence of blood in your stool is not something to ignore. It is essential to seek medical attention to determine the underlying cause and receive appropriate treatment. Early intervention can be crucial in managing any potential health issues effectively.

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