Recent Blood in Stool: Causes and Concerns - Gastroenterology and Hepatology

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Recent rectal bleeding?


Hello, doctor.
My bowel habit is to have a regular bowel movement every morning, and occasionally I also have one before taking a shower at night.
For the past month, my bowel habits have not changed, and the shape of my stools has been normal.
However, there has been slight bleeding at the end of my stools, and occasionally when I pass gas just before sitting on the toilet, a little blood comes out as well.
There were a couple of days in the past month where this issue was absent, but it resumed the next day.
Although the amount of blood is not significant, seeing the red in the toilet is still concerning.
I would appreciate your insights on this matter.
Thank you.

Mr. Wang, 20~29 year old female. Ask Date: 2021/01/29

Dr. Lin Minghui reply Gastroenterology and Hepatology


Hello: The frequency of bowel movements has not changed, but there is blood in the stool.
Common causes of blood in the stool include hemorrhoids, anal fissures, inflammation of the rectum or anus, or tumors.
It is advisable to avoid irritating foods.
Blood in the stool should be investigated, as it can sometimes lead to severe anemia.
It is recommended to consult a colorectal surgeon or a gastroenterologist for examination and diagnosis.
Wishing you safety and health.
Sincerely, Dr.
Lin Ming-Hui, Attending Physician, Gastroenterology Department, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2021/01/29

More Info


Experiencing blood in your stool can be concerning, and it's important to understand the potential causes and when to seek medical attention. Based on your description, it seems that you have noticed slight bleeding at the end of your bowel movements, which can occur for a variety of reasons.
One of the most common causes of blood in the stool, especially if it is bright red, is hemorrhoids. Hemorrhoids are swollen veins in the lower rectum or anus that can become inflamed and bleed during bowel movements, particularly if there is straining involved. This is often accompanied by discomfort or itching around the anal area. Given that you mentioned the blood appears when you pass gas and at the end of your bowel movements, this could be a likely explanation.

Another possibility is anal fissures, which are small tears in the lining of the anus. These can occur due to passing hard stools or straining during bowel movements. Like hemorrhoids, fissures can cause bright red blood and may be associated with pain during bowel movements.

In some cases, blood in the stool can indicate more serious conditions, such as diverticular disease, inflammatory bowel disease (IBD), or even colorectal cancer. However, these conditions typically present with additional symptoms, such as abdominal pain, changes in bowel habits, weight loss, or persistent diarrhea.

Since you mentioned that your bowel habits have not changed and the shape of your stools remains normal, this may suggest that the bleeding is not due to a significant underlying condition. However, it is crucial to monitor the situation closely. If the bleeding persists, increases in volume, or is accompanied by other symptoms such as pain, changes in bowel habits, or weight loss, it is essential to consult a healthcare professional for a thorough evaluation.

In terms of management, if hemorrhoids or fissures are suspected, there are several home remedies and over-the-counter treatments that may help. Increasing fiber intake through diet or supplements can help soften stools and reduce straining. Staying well-hydrated is also important. Warm sitz baths can provide relief for hemorrhoids and fissures. Over-the-counter creams or ointments may help alleviate discomfort associated with hemorrhoids.

However, it is important to emphasize that self-diagnosis and treatment should not replace professional medical advice. Given your concerns and the presence of blood, I recommend scheduling an appointment with a healthcare provider, preferably a gastroenterologist or a primary care physician. They may perform a physical examination and possibly recommend further tests, such as a colonoscopy, to rule out any serious conditions.

In summary, while there are common and benign reasons for blood in the stool, it is always best to err on the side of caution. Monitoring your symptoms and seeking medical advice when necessary is key to ensuring your health and peace of mind.

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