Red Streaks in Stool: Should You Worry About Gastrointestinal Health? - Gastroenterology and Hepatology

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The stool appears to have blood, but there is none on the toilet paper?


Hello, doctor.
I would like to ask about my recent bowel movements.
They have mostly been unformed, and I've noticed a slight reddish color in the toilet water, although there is no blood on the toilet paper.
I usually drink coffee, and after bowel movements, I experience mild stinging around the anus, but I do not have abdominal pain.
Should I consider getting an endoscopy? Thank you.

A-Huan, 30~39 year old female. Ask Date: 2017/06/29

Dr. Chen Qifeng reply Gastroenterology and Hepatology


1.
First, identify which foods may have caused the red discoloration in the stool.

2.
The absence of blood on the toilet paper after wiping the anus indicates that the bleeding is not confirmed.

3.
Post-defecation anal pain may be related to anal conditions such as anal fissures or hemorrhoids.

4.
It is recommended to consult a colorectal surgeon; even if an examination is necessary, it would involve procedures such as anoscopy, sigmoidoscopy, or colonoscopy.

Reply Date: 2017/06/29

More Info


When it comes to gastrointestinal health, the presence of red streaks in stool can understandably cause concern. Based on your description, it seems that you are experiencing some irregularities in your bowel movements, including loose stools and the appearance of red streaks, which may resemble blood. However, it is important to consider several factors before jumping to conclusions about the underlying causes.

Firstly, the color of your stool can be influenced by various factors, including diet. Foods such as beets, tomatoes, and certain artificial colorings can cause red or reddish stools. If you have consumed these foods recently, it might explain the color change. Additionally, medications and supplements can also affect stool color. For instance, iron supplements can lead to dark stools, while some antibiotics can cause gastrointestinal disturbances.

The fact that you mentioned experiencing a slight stinging sensation around the anus after bowel movements could indicate irritation, which might be due to the consistency of your stool or even external factors such as hygiene products or excessive wiping. However, if the irritation persists or worsens, it may warrant further investigation.

Given that you have a history of gastrointestinal issues, including loose stools, it is advisable to monitor your symptoms closely. If the red streaks in your stool continue or if you experience additional symptoms such as abdominal pain, significant changes in bowel habits, or any signs of bleeding (such as blood on toilet paper or in the toilet bowl), it is crucial to seek medical attention promptly.

In terms of whether you should undergo a gastrointestinal examination, such as an endoscopy or colonoscopy, it largely depends on the persistence and severity of your symptoms. If the red streaks in your stool are a one-time occurrence and you do not have any other concerning symptoms, it may be reasonable to observe for a short period. However, if the symptoms persist for more than a few days, or if you experience any alarming symptoms, it is wise to consult a gastroenterologist for a thorough evaluation.

A colonoscopy is typically recommended if there is a suspicion of conditions such as inflammatory bowel disease, polyps, or colorectal cancer, especially if you have risk factors such as a family history of gastrointestinal diseases. In your case, if the red streaks are accompanied by other symptoms or if you have a history of gastrointestinal issues, a colonoscopy may be warranted to rule out any serious underlying conditions.

In conclusion, while the presence of red streaks in your stool can be concerning, it is essential to consider dietary factors, recent changes in bowel habits, and any accompanying symptoms. Monitoring your condition and seeking medical advice if symptoms persist or worsen is the best course of action. Remember, early detection and intervention are key to managing gastrointestinal health effectively.

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