Mucus in Stool: Causes and Concerns - Surgery

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Mucus in stool?


Hello Doctor: For the past month, I have noticed white mucus in my stool (similar to egg whites).
Sometimes, towards the end of a bowel movement, I expel some mucus when straining, and there is mucus on the toilet paper when I wipe.
I am 176 cm tall and have lost 2 kg over the past 5 to 6 months, maintaining a weight of 63 kg since July.
I have a bowel movement once a day.
Could you please explain why there is mucus in my stool? P.S.
Previously, I had a lot of blood in my stool and was having multiple bowel movements a day.
I underwent a barium study which showed no tumors, but I do have hemorrhoids.
Recently, the mucus in my stool sometimes appears slightly red and at other times looks transparent and yellowish.

DR, 20~29 year old female. Ask Date: 2004/08/06

Dr. Hou Yongji reply Surgery


Hello: Based on your description, it could be rectal inflammation or a tumor.
Please consult a colorectal specialist for a colonoscopy to confirm the diagnosis, which will allow for the development of a treatment plan.

Reply Date: 2004/08/06

More Info


Mucus in stool can be a concerning symptom, and understanding its causes is essential for determining whether it indicates a benign condition or something more serious. The presence of mucus in stool is not uncommon and can occur for various reasons. In your case, the recent changes in your bowel habits, including the presence of white mucus resembling egg whites, and the history of blood in your stool, warrant careful consideration.

Mucus is a normal component of the digestive system, produced by the intestines to lubricate the stool and facilitate its passage through the gastrointestinal tract. However, when there is an increase in mucus production, it can indicate an underlying issue. Here are some potential causes of mucus in stool:
1. Irritable Bowel Syndrome (IBS): This functional gastrointestinal disorder can lead to changes in bowel habits, including increased mucus production. IBS is often associated with abdominal pain, bloating, and changes in stool consistency.

2. Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease and ulcerative colitis can cause inflammation in the intestines, leading to increased mucus production. These conditions may also present with symptoms such as abdominal pain, diarrhea, and weight loss.

3. Infections: Gastrointestinal infections, whether viral, bacterial, or parasitic, can lead to increased mucus in the stool. Infections can also cause diarrhea, abdominal cramping, and sometimes blood in the stool.

4. Hemorrhoids: Given your history of hemorrhoids, it's possible that they could be contributing to the mucus production, especially if there is associated irritation or inflammation in the anal region.

5. Dietary Factors: Certain foods can irritate the gastrointestinal tract and lead to increased mucus production. Dairy products, for example, can be problematic for some individuals, especially those who are lactose intolerant.

6. Malabsorption Syndromes: Conditions that affect nutrient absorption, such as celiac disease or pancreatic insufficiency, can lead to changes in stool, including increased mucus.

7. Colon Polyps or Cancer: Although less common, the presence of mucus, especially if accompanied by blood, can be a sign of more serious conditions, including polyps or colorectal cancer. Given your previous history of blood in the stool, this is a consideration that should not be overlooked.

In your case, the fact that you have experienced weight loss and changes in your stool, along with the presence of blood and mucus, suggests that further evaluation is necessary. While the barium enema ruled out tumors, it is essential to follow up with your healthcare provider for a comprehensive assessment. This may include repeat colonoscopy, stool tests, or imaging studies to evaluate the underlying cause of your symptoms.

It is also important to monitor any additional symptoms you may experience, such as abdominal pain, changes in appetite, or further weight loss. Keeping a detailed record of your symptoms can help your healthcare provider make a more accurate diagnosis.

In summary, while mucus in stool can be a benign finding, your specific symptoms and history necessitate further investigation to rule out any serious conditions. Please consult your healthcare provider to discuss your symptoms in detail and determine the appropriate next steps for diagnosis and management.

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