Bright Red Blood in Stool: Causes and Concerns - Surgery

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Blood in the stool?


I have noticed blood in my stool during my recent bowel movements, and the blood is bright red.
In addition to blood on the toilet paper, there is also blood in the toilet bowl.
Particularly in the last couple of days, I have been experiencing increased flatulence and an increased frequency of bowel movements, going 2-3 times a day, with blood present each time.
There is no pain, but I do feel a sense of heaviness in my abdomen, along with some palpitations and dizziness.
Thank you.

Gina, 30~39 year old female. Ask Date: 2016/09/04

Dr. Yu Mingchang reply Surgery


Hello; please take some time to visit the colorectal department for a colonoscopy.
The Ministry of Health and Welfare Changhua Hospital cares about you.

Reply Date: 2016/09/04

More Info


Bright red blood in the stool can be alarming and may indicate various underlying conditions. It is essential to understand the potential causes and when to seek medical attention. The presence of bright red blood typically suggests that the source of bleeding is in the lower gastrointestinal tract, such as the rectum or colon, rather than the upper gastrointestinal tract, where blood would appear darker due to digestion.

Common causes of bright red blood in the stool include:
1. Hemorrhoids: Swollen blood vessels in the rectal area can cause bleeding during bowel movements. This is often accompanied by itching or discomfort but may not always cause pain.

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

3. Diverticular disease: Diverticulosis, which involves small pouches forming in the colon wall, can lead to diverticulitis, where these pouches become inflamed or infected, potentially causing bleeding.

4. Colorectal polyps or cancer: Polyps are growths on the inner lining of the colon that can bleed. Some polyps can develop into cancer over time, making it crucial to monitor any changes in bowel habits or bleeding.

5. Gastrointestinal infections: Certain infections can cause inflammation and bleeding in the intestines, leading to bloody stools.

6. Inflammatory bowel disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause chronic inflammation of the gastrointestinal tract, resulting in bloody diarrhea.

Given your symptoms of increased bowel movements, the presence of bright red blood, and feelings of lightheadedness or palpitations, it is crucial to seek medical attention promptly. While the absence of pain may suggest a less severe condition, the combination of symptoms could indicate a more serious issue that requires evaluation.

In addition to a physical examination, your healthcare provider may recommend diagnostic tests such as a colonoscopy, stool tests, or imaging studies to determine the cause of the bleeding. It is also essential to monitor for any other symptoms, such as changes in weight, appetite, or the consistency of your stools, as these can provide additional clues to your healthcare provider.

In the meantime, ensure you stay hydrated, especially if you are experiencing increased bowel movements. Avoiding straining during bowel movements can help prevent further irritation or bleeding if hemorrhoids or anal fissures are involved. However, do not delay seeking medical advice, as timely diagnosis and treatment are crucial for any gastrointestinal bleeding.

In summary, while bright red blood in the stool can arise from various causes, it is essential to take this symptom seriously. Consulting with a healthcare professional will help determine the underlying issue and appropriate treatment, ensuring your health and well-being.

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