Loose Stools: Causes and Concerns for Digestive Health - Gastroenterology and Hepatology

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Loose stools that disintegrate upon flushing?


I have been experiencing loose stools for a month now, which break apart and stain the entire toilet bowl.
Is this normal, or could it be caused by some underlying disease? This has not happened before, and I often see food remnants like vegetables and carrots in my stool.
No matter what vegetables I eat, I can always see remnants in my feces.
I'm also confused about whether the reddish spots on the surface of my stool are undigested food or blood.
(Last year, I had a colonoscopy that showed nonspecific colitis, but it didn't specify which type.
Could this be related to my current symptoms?)

Lin, 20~29 year old female. Ask Date: 2020/04/13

Dr. Chen Shidian reply Gastroenterology and Hepatology


It is likely just irritable bowel syndrome.
If necessary, seek medical attention for stool occult blood testing or medication.
Chew food thoroughly during meals.

Reply Date: 2020/04/13

More Info


Loose stools, or diarrhea, can be concerning, especially when they persist for an extended period, such as a month. The symptoms you describe—soft stools that break apart easily, discoloration of the toilet water, and visible food remnants—can indicate several potential underlying issues that warrant further investigation.

Firstly, it is essential to understand that the digestive system is complex, and various factors can influence stool consistency and appearance. Loose stools can result from dietary choices, infections, medications, or underlying gastrointestinal conditions. Given your history of non-specific colitis, it is possible that your current symptoms are related to this condition. Non-specific colitis can lead to inflammation in the colon, which may affect how food is digested and absorbed, resulting in loose stools and undigested food particles in your stool.

1. Dietary Factors: Certain foods can contribute to loose stools. High-fiber foods, such as fruits and vegetables, can sometimes lead to softer stools, especially if your body is not used to a high-fiber diet. Additionally, foods that are high in fat or sugar can also cause digestive upset. If you have recently changed your diet or increased your intake of certain foods, this could be a contributing factor.

2. Infections: Gastrointestinal infections, whether viral, bacterial, or parasitic, can lead to diarrhea. Symptoms may include loose stools, abdominal cramps, and sometimes fever. If you have traveled recently or consumed food from questionable sources, an infection could be a possibility.

3. Medications: Certain medications can also cause diarrhea as a side effect. If you are taking any new medications or have recently changed dosages, this could be a factor. Antibiotics, in particular, can disrupt the natural balance of gut bacteria, leading to diarrhea.

4. Malabsorption: Conditions that affect nutrient absorption, such as celiac disease or lactose intolerance, can lead to undigested food particles in the stool. If your body is not adequately absorbing nutrients, you may notice food remnants in your stool.

5. Inflammatory Bowel Disease (IBD): Given your history of non-specific colitis, it is crucial to consider the possibility of IBD, which includes conditions like Crohn's disease and ulcerative colitis. These conditions can cause chronic inflammation in the digestive tract, leading to symptoms such as diarrhea, abdominal pain, and weight loss.

6. Blood in Stool: The concern about red discoloration in your stool could indicate the presence of blood, which is a serious symptom that should not be ignored. Blood in the stool can arise from various sources, including hemorrhoids, anal fissures, or more severe conditions like gastrointestinal bleeding due to ulcers or tumors.

Given these considerations, it is advisable to consult with a healthcare professional, preferably a gastroenterologist, who can perform a thorough evaluation. This may include a physical examination, review of your medical history, and possibly additional tests such as stool studies, imaging, or even a repeat colonoscopy if deemed necessary.

In the meantime, keeping a food diary can help identify any dietary triggers that may be contributing to your symptoms. Additionally, staying hydrated is crucial, especially if you are experiencing diarrhea, as it can lead to dehydration.

In summary, while loose stools can sometimes be benign, the duration and accompanying symptoms you describe suggest that further evaluation is warranted. It is essential to address these concerns promptly to ensure your digestive health and overall well-being.

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