Changes in Bowel Movements: Causes of Soft and Mucous Stools - Gastroenterology and Hepatology

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Abnormal bowel movements for over a week?


I have had irritable bowel syndrome in the past, but recently it feels different.
I am almost always having soft or mushy stools and feel the urge to have a bowel movement, although it's not an urgent feeling.
There is no blood in the stool, but there is mucus.
Since childhood, I have been having bowel movements two to three times a day without ever experiencing constipation.
Could you please advise me on what this situation might be?

Chen, 30~39 year old female. Ask Date: 2015/01/21

Dr. Chen Qifeng reply Gastroenterology and Hepatology


Hello: Before diagnosing irritable bowel syndrome (IBS), it is essential to rule out any organic diseases (such as inflammation, polyps, cancer, etc.).
If a diagnosis has already been established, the focus should remain on dietary adjustments and medication.
Wishing you peace and health.
Sincerely, Dr.
Chen Chih-Feng, Gastroenterology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2015/01/21

More Info


Changes in bowel movements, particularly the occurrence of soft or mucous stools, can be indicative of various underlying conditions. Given your history of irritable bowel syndrome (IBS) and the recent changes in your bowel habits, it's essential to consider several factors that could contribute to these symptoms.

Firstly, IBS is a functional gastrointestinal disorder characterized by a combination of symptoms, including abdominal pain, bloating, and changes in bowel habits, which can manifest as diarrhea, constipation, or alternating between the two. The fact that you are experiencing soft stools or "mud-like" stools could be a manifestation of your IBS, particularly if you are under stress or have made recent dietary changes. Stress and anxiety are known triggers for IBS flare-ups, leading to increased bowel motility and softer stools.

The presence of mucus in your stools is also noteworthy. Mucus can be a normal component of stool, as it helps lubricate the intestines. However, an increase in mucus production can sometimes indicate irritation or inflammation in the intestines. This could be due to various factors, including dietary intolerances, infections, or inflammatory bowel diseases (IBD) such as Crohn's disease or ulcerative colitis. Given that you have not experienced blood in your stools, this may reduce the likelihood of more severe conditions, but it does not entirely rule them out.

Dietary factors play a significant role in bowel health. A diet low in fiber or high in processed foods can lead to softer stools. Conversely, an increase in fiber intake, particularly from fruits, vegetables, and whole grains, can help regulate bowel movements and improve stool consistency. If you have recently altered your diet, it may be beneficial to assess your fiber intake and consider incorporating more fiber-rich foods.

Additionally, hydration is crucial for maintaining healthy bowel function. While you mentioned that you have not experienced constipation, adequate fluid intake is essential for preventing dehydration, which can also affect stool consistency. However, excessive fluid intake without sufficient fiber can lead to looser stools.

Infections, particularly gastrointestinal infections, can also lead to changes in stool consistency. While you mentioned that you have not taken antibiotics recently, it is still possible to contract infections from contaminated food or water, leading to diarrhea and mucous stools. If you suspect an infection, it may be worth discussing this with your healthcare provider.

Lastly, the sensation of needing to have a bowel movement frequently, even without urgency, can be a symptom of IBS or other gastrointestinal disorders. This sensation can be frustrating and may lead to increased anxiety about bowel habits, further exacerbating the condition.

In summary, the changes in your bowel movements, characterized by soft and mucous stools, could be attributed to your underlying IBS, dietary factors, stress, or potential infections. It is advisable to maintain a balanced diet rich in fiber, stay hydrated, and manage stress effectively. If symptoms persist or worsen, or if you experience new symptoms such as significant weight loss, persistent abdominal pain, or changes in appetite, it is crucial to consult with a healthcare provider for further evaluation and management. Regular follow-ups with your gastroenterologist can help monitor your condition and adjust your treatment plan as necessary.

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