Rectal Bleeding with Clots: When to Seek Medical Attention - Surgery

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Blood in stool with blood clots?


I previously had a gastric ulcer.
For the past five days, I have been experiencing blood in my stool every time I have a bowel movement, with a volume similar to menstrual bleeding, and I have also noticed blood clots.
I have a bowel movement almost every day, and the stool is normal, not hard or painful.
I have been experiencing intermittent pain in my lower left abdomen for over a month.
The color of my urine is normal.
What could this issue be? How long should I wait before seeing a doctor if the rectal bleeding does not improve?

Miss Lin, 20~29 year old female. Ask Date: 2016/12/01

Dr. Chen Jiaming reply Surgery


The presence of blood in the stool is most commonly caused by hemorrhoids or damage to the intestinal mucosa (such as after multiple episodes of diarrhea).
However, it is important to rule out the possibility of benign or malignant tumors in the intestines or other lesions.
If symptoms such as blood in the stool persist despite the use of stool softeners and dietary adjustments (such as increasing water intake, consuming more high-fiber fruits and vegetables, and modifying bowel positioning habits), it is advisable to consult a colorectal surgeon or a gastroenterologist for a digital rectal examination or a colonoscopy to confirm the diagnosis.

Reply Date: 2016/12/01

More Info


Rectal bleeding, especially when accompanied by clots, can be a concerning symptom that warrants medical attention. Given your history of peptic ulcer disease and the current symptoms you are experiencing, it is essential to approach this situation with caution.
Firstly, the presence of bright red blood in your stool, particularly in the quantity you describe, can indicate several potential issues. These can range from benign conditions, such as hemorrhoids or anal fissures, to more serious conditions like diverticulosis, inflammatory bowel disease (IBD), or even colorectal cancer. The fact that you are experiencing clots along with the bleeding raises the concern for a more significant underlying issue that needs to be evaluated.

The left lower abdominal pain you mentioned could also be a clue to the underlying problem. Pain in that area can be associated with conditions affecting the colon, such as diverticulitis or other inflammatory processes. The normal appearance of your urine is a good sign, as it suggests that your urinary system is likely functioning well and is not contributing to the bleeding.

In terms of when to seek medical attention, it is generally advisable to consult a healthcare provider if you experience any of the following:
1. Persistent Bleeding: If the rectal bleeding continues for more than a few days without improvement, it is crucial to seek medical evaluation. Given that you have already been experiencing this for over a month, it is advisable to see a doctor sooner rather than later.

2. Volume of Blood: If you notice a significant increase in the amount of blood, or if it becomes more than just spotting, this is a red flag that requires immediate attention.

3. Associated Symptoms: If you experience additional symptoms such as severe abdominal pain, changes in bowel habits (such as diarrhea or constipation), unexplained weight loss, or fatigue, these could indicate a more serious condition that needs to be addressed.

4. Family History: If you have a family history of gastrointestinal diseases, including colorectal cancer, this further emphasizes the need for prompt evaluation.

5. Changes in Bowel Movements: Any significant changes in your bowel habits, such as the frequency or consistency of your stools, should also prompt a visit to your healthcare provider.

In summary, while some causes of rectal bleeding can be benign, the combination of your symptoms, particularly the presence of clots and the duration of your symptoms, suggests that you should seek medical attention as soon as possible. A healthcare provider will likely perform a thorough evaluation, which may include a physical examination, blood tests, and possibly imaging studies or a colonoscopy to determine the cause of your symptoms. Early diagnosis and treatment are crucial in managing any underlying conditions effectively.

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