Mucus in Stool: Causes and Concerns for Your Gut Health

Q: Mucus in Stool: Causes and Concerns for Your Gut Health

Hello Mr. <br>Liu： You reported that a few weeks ago, you suddenly experienced mucus-only stools and persistent bloating. <br>After receiving medication from the clinic, you began to have to strain to have bowel movements, and blood streaks appeared in your stool. <br>Previously,

Mucus in stool

A few weeks ago, I suddenly experienced only mucus during bowel movements and persistent bloating.
My stools were soft at that time.
I visited a general clinic, and the doctor mentioned it was mild gastroenteritis, but I did not experience any abdominal pain or symptoms of vomiting or diarrhea.
After taking medication for a day or two, my bowel movements changed to hard, pellet-like stools resembling goat droppings, and the quantity was not significant.
When I had larger bowel movements, I had to exert a lot of effort.
A few days ago, I noticed blood streaks in my stool (without separate blood), and there was a bit of red on the toilet paper when wiping, along with some slight mucus.
However, there was no pain in my abdomen or anus.
I am very concerned that there might be an issue with my intestines.
I have had chronic constipation for a long time.
Over a year ago, I underwent a fecal occult blood test and blood tests (but did not have a colonoscopy), and the results were normal.
In the past couple of years, I have been eating more vegetables and have been drinking enough water and exercising, but I am still worried that I might have colon cancer.
Thank you.

Liu Xiansheng, 30~39 year old female. Ask Date: 2021/02/18

Dr. Zhang Kebin reply Gastroenterology and Hepatology

Hello Mr.
Liu: You reported that a few weeks ago, you suddenly experienced mucus-only stools and persistent bloating.
After receiving medication from the clinic, you began to have to strain to have bowel movements, and blood streaks appeared in your stool.
Previously, your stool occult blood and blood tests were normal, and you are concerned about the possibility of colorectal cancer.
The typical symptoms of colorectal cancer include blood in the stool due to tumor bleeding, narrowing of the stool as the tumor grows and obstructs the intestine, and associated symptoms such as weight loss.
Your symptoms seem atypical and are more suggestive of hemorrhoidal bleeding after straining.
I recommend that you visit a hospital to discuss further examination and treatment with a colorectal or gastroenterology specialist.
Thank you for your inquiry!

Reply Date: 2021/02/18

More Info

Understanding mucus in stool can be a source of concern for many individuals, especially when accompanied by changes in bowel habits, such as constipation or the presence of blood. In your case, the symptoms you've described—mucus in stool, hard and pellet-like stools, and the presence of blood—warrant a closer examination of potential underlying causes.

Mucus is a normal component of stool, produced by the intestines to help lubricate the bowel and facilitate the passage of stool. However, an increase in mucus production can indicate an underlying issue. Common causes of increased mucus in stool include:
1. Irritable Bowel Syndrome (IBS): This functional gastrointestinal disorder can lead to symptoms such as abdominal pain, bloating, and changes in bowel habits, including diarrhea and constipation. Mucus may be more prominent in the stool during flare-ups.

2. Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease and ulcerative colitis can cause inflammation in the gastrointestinal tract, leading to increased mucus production, diarrhea, and sometimes blood in the stool. Given your history of gastrointestinal symptoms, this is a possibility that should be explored further.

3. Infections: Gastrointestinal infections, whether viral, bacterial, or parasitic, can lead to increased mucus production. While you mentioned not experiencing significant gastrointestinal distress, mild infections can sometimes present with subtle symptoms.

4. Dietary Factors: Changes in diet, such as increased fiber intake or the consumption of certain foods, can also affect bowel habits and mucus production. It's important to consider whether any recent dietary changes might be contributing to your symptoms.

5. Hemorrhoids or Anal Fissures: The presence of blood on toilet paper could indicate hemorrhoids or anal fissures, which can occur due to straining during bowel movements, especially if you are experiencing constipation. These conditions can cause discomfort but may not always be associated with significant pain.

Given your concerns about colorectal cancer, it's understandable to feel anxious, especially with the presence of blood in your stool. While your previous tests, including stool occult blood tests, were normal, it is crucial to consider that symptoms can evolve over time. The fact that you have a history of constipation and are experiencing new symptoms, such as blood in the stool, warrants further investigation.

Recommendations:
1. Consult a Gastroenterologist: Given your symptoms and history, it would be prudent to consult a gastroenterologist. They may recommend a colonoscopy to visualize the colon and rectum directly, which can help rule out serious conditions, including colorectal cancer.

2. Dietary Review: Continue to maintain a balanced diet rich in fiber, but also consider keeping a food diary to identify any potential triggers for your symptoms. Staying hydrated is essential, especially when increasing fiber intake.

3. Monitor Symptoms: Keep track of your bowel habits, including the consistency of your stool, the presence of mucus or blood, and any associated symptoms such as pain or changes in appetite.

4. Follow-Up Testing: If your symptoms persist or worsen, further testing may be necessary, including imaging studies or additional laboratory tests to assess for underlying conditions.

In summary, while mucus in stool can be benign, the combination of your symptoms—especially the presence of blood—should not be ignored. Early evaluation and intervention can help address any potential issues and provide peace of mind regarding your gut health.

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