Red Blood and Mucus in Stool: When to Seek Further Gastrointestinal Evaluation - Gastroenterology and Hepatology

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The stool has red streaks of blood, and recently there has been mucus resembling nasal discharge in the stool?


Since the beginning of the year, I have experienced 2-3 instances of blood-streaked mucus attached to the surface of my stool, with the most recent occurrence in mid-September.
These episodes were not persistent and lasted only one day.
Additionally, at the beginning of October, I had a week-long episode where my stool contained a significant amount of milky white mucus.
Initially, it was mixed with the stool, but later, a lump of mucus was found at the bottom of the toilet.
After consulting a doctor, it was suspected to be enteritis (the doctor confirmed the presence of mucus during a digital rectal examination and colonoscopy) and hemorrhoids were also noted.
I was prescribed medication for a week and advised to observe for 2-3 weeks after finishing the medication.
The mucus gradually decreased and eventually disappeared.
However, on November 7 and November 16, I noticed white mucus mixed with my stool again, with some settling at the bottom of the toilet.
Although the quantity was small and lasted only one day, it still concerns me.
Should I go directly for a colonoscopy? For additional context, on the days when the mucus appeared, I did not experience any gastrointestinal discomfort, and I have been having regular bowel movements every morning at a consistent time.

Lin Xiaofen, 30~39 year old female. Ask Date: 2015/11/19

Dr. Yang Zhichao reply Gastroenterology and Hepatology


Dear Miss Lin,
White mucus is usually not a concern, as it is mostly intestinal mucus.
However, since you have experienced red stools, it is recommended that you undergo further stool testing (routine stool screening).
If any issues are found, a colonoscopy should be arranged.

Changhua Hospital cares about your health.

Reply Date: 2015/11/19

More Info


When it comes to gastrointestinal health, the presence of blood and mucus in the stool can be concerning and warrants careful evaluation. Based on your description, you have experienced intermittent episodes of blood-streaked mucus in your stool, as well as instances of white mucus. While you have previously consulted with a physician who suggested that your symptoms might be related to colitis and hemorrhoids, the recurrence of these symptoms raises important questions about the need for further investigation.

Firstly, it is essential to understand that the presence of blood in the stool can indicate a range of conditions, from benign issues such as hemorrhoids to more serious conditions like inflammatory bowel disease (IBD) or colorectal cancer. Mucus in the stool can also be a sign of inflammation in the intestines. Given that you have experienced both blood and mucus, it is crucial to monitor these symptoms closely.

The fact that your symptoms have been intermittent and have resolved after a short period is somewhat reassuring, but it does not eliminate the need for further evaluation. The presence of mucus, especially if it is accompanied by blood, can indicate ongoing inflammation or irritation in the gastrointestinal tract. Since you have already undergone a rectal examination and a flexible sigmoidoscopy, which revealed mucus and hemorrhoids, it is wise to consider the possibility of a more comprehensive evaluation, such as a colonoscopy, especially since you have had recurrent symptoms.

Colonoscopy is a valuable diagnostic tool that allows for direct visualization of the entire colon and can help identify any abnormalities, such as polyps, inflammation, or lesions. Given your history of intermittent symptoms and the fact that you have not yet undergone a full colonoscopy, it may be prudent to discuss this option with your healthcare provider. They can assess your risk factors, including your age, family history of gastrointestinal diseases, and any other symptoms you may have experienced.

In addition to the physical examination and imaging studies, it is also important to consider dietary factors that may contribute to your symptoms. Certain foods can irritate the gastrointestinal tract and lead to increased mucus production. Keeping a food diary to track your diet and any associated symptoms may provide valuable insights into potential triggers.

Furthermore, if you notice any changes in your bowel habits, such as increased frequency, changes in consistency, or the presence of additional symptoms like abdominal pain, weight loss, or changes in appetite, it is crucial to seek medical attention promptly. These could be signs of a more serious underlying condition that requires immediate evaluation.

In conclusion, while the intermittent nature of your symptoms may suggest a benign process, the presence of blood and mucus in the stool should not be taken lightly. Given your history and the recurrence of symptoms, it is advisable to consult with your healthcare provider about the possibility of undergoing a colonoscopy for a thorough evaluation. Early detection and diagnosis are key to managing any potential gastrointestinal issues effectively. Always prioritize your health and do not hesitate to seek further evaluation if you have concerns about your symptoms.

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