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

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Blood in the stool?


I haven't had a bowel movement for four days, and today I felt the urge to go.
I noticed blood on the surface of the stool, but there was no blood on the toilet paper.
The stool was somewhat thin and yellowish, not very hard.
When I had a larger bowel movement, it was slightly painful and felt warm.
What should I do?

Niming, 10~19 year old female. Ask Date: 2016/07/09

Dr. Chen Qifeng reply Gastroenterology and Hepatology


Blood on the surface of the stool indicates bleeding from the anus or rectum, and a consultation with a colorectal surgeon is recommended.

Reply Date: 2016/07/09

More Info


When you notice blood in your stool, it can be concerning, and it's important to understand the potential causes and when to seek medical help. Blood in the stool can appear in various forms, such as bright red blood, dark red blood, or even black, tarry stools. Each of these can indicate different underlying issues.

In your case, you mentioned that you have not had a bowel movement for four days, and upon finally having one, you noticed blood on the surface of the stool. The fact that the blood is not mixed in with the stool but rather on the surface could suggest a few possibilities. One common cause of blood on the surface of the stool is hemorrhoids, which are swollen blood vessels in the rectal area that can bleed during bowel movements, especially if the stool is hard or if you are straining. Another possibility is anal fissures, which are small tears in the lining of the anus that can occur due to passing hard stools, leading to pain and bleeding.

The symptoms you described, such as slight pain and a feeling of heat, could also be associated with these conditions. However, it is essential to consider other potential causes as well, including gastrointestinal issues such as diverticulosis, inflammatory bowel disease (IBD), or even polyps or tumors in the colon, especially if the bleeding persists or is accompanied by other symptoms like significant pain, changes in bowel habits, or weight loss.

Given your situation, here are some recommendations:
1. Hydration and Diet: Since you have not had a bowel movement for several days, it is crucial to stay hydrated and consider increasing your fiber intake. Foods high in fiber, such as fruits, vegetables, and whole grains, can help soften the stool and promote regular bowel movements. If you are experiencing constipation, over-the-counter stool softeners or mild laxatives may also be helpful, but consult with a healthcare provider before starting any medication.

2. Monitor Symptoms: Keep an eye on your symptoms. If the bleeding continues, worsens, or if you experience severe pain, fever, or other concerning symptoms, it is essential to seek medical attention promptly.

3. Consult a Healthcare Provider: It is advisable to consult with a healthcare provider, especially if this is not an isolated incident. They may recommend a physical examination, and possibly further tests such as a colonoscopy, to determine the exact cause of the bleeding and to rule out any serious conditions.

4. When to Seek Immediate Help: If you experience significant amounts of blood in your stool, severe abdominal pain, dizziness, or fainting, you should seek emergency medical care. These could be signs of a more serious condition that requires immediate attention.

In summary, while some causes of blood in the stool can be benign, it is always best to err on the side of caution and consult with a healthcare professional to ensure proper diagnosis and treatment. Your health is important, and addressing these symptoms early can lead to better outcomes.

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