Chronic Diarrhea: Causes and Management for Gastrointestinal Issues - Gastroenterology and Hepatology

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Diarrhea and bowel movement issues?


Hello, my mother has been experiencing symptoms since the end of October.
She does not have abdominal pain but has been having persistent diarrhea.
After taking anti-diarrheal medication and following a bland diet, her diarrhea has decreased, but it resumes once she returns to her normal diet.
Today marks the second time she has taken anti-diarrheal medication and consumed congee for two days.
Last night, her stool started to form but was still soft, and later it became loose again.
I would like to know if this is expected to improve gradually and if there might be an underlying cause (the first day she had diarrhea, she consumed high-protein powder, and she experienced chills, cold sweats, and excessive salivation).
Since my mother has limited mobility, I would like to understand this online first.
Thank you.

Niming, 30~39 year old female. Ask Date: 2022/11/11

Dr. Chen Shidian reply Gastroenterology and Hepatology


Stool tests/cultures may be necessary, but in the absence of fever or blood in the stool, treatment primarily focuses on medication and dietary adjustments.

Reply Date: 2022/11/11

More Info


Chronic diarrhea can be a challenging condition to manage, especially when it persists despite dietary adjustments and medication. Your mother's symptoms, which include ongoing diarrhea without abdominal pain, suggest that there may be an underlying gastrointestinal issue that needs to be addressed.
Based on the information provided, it seems that your mother has been experiencing diarrhea since late October, with some improvement when taking anti-diarrheal medications and consuming a bland diet. However, the return to normal eating habits leads to a recurrence of diarrhea, indicating that her gastrointestinal system may be sensitive to certain foods or that there is an underlying condition that has not yet been diagnosed.

There are several potential causes of chronic diarrhea, including:
1. Infections: Bacterial, viral, or parasitic infections can lead to diarrhea. If your mother experienced a sudden onset of diarrhea after consuming a specific food, such as high-protein powder, it could be related to foodborne illness.

2. Food Intolerances or Allergies: Some individuals may have intolerances to certain foods, such as lactose (found in dairy products) or gluten (found in wheat and other grains). If your mother has a sensitivity to any of these, it could explain her symptoms.

3. Irritable Bowel Syndrome (IBS): This functional gastrointestinal disorder can cause chronic diarrhea, often triggered by stress, certain foods, or hormonal changes. It is characterized by a combination of symptoms, including diarrhea, constipation, and abdominal discomfort.

4. Inflammatory Bowel Disease (IBD): Conditions such as Crohn's disease or ulcerative colitis can cause chronic diarrhea along with other symptoms like weight loss, fatigue, and abdominal pain. These conditions require medical diagnosis and management.

5. Medications: Some medications can cause diarrhea as a side effect. If your mother is taking any new medications, it might be worth discussing this with her healthcare provider.

6. Malabsorption Syndromes: Conditions that affect nutrient absorption, such as celiac disease or pancreatic insufficiency, can lead to chronic diarrhea.

Given that your mother has experienced a significant change in her bowel habits, it is essential to consult a healthcare professional for a thorough evaluation. This may include a detailed medical history, physical examination, and possibly laboratory tests or imaging studies to identify the underlying cause of her symptoms.

In the meantime, here are some management strategies that may help:
- Dietary Adjustments: Continue with a bland diet that is low in fat and fiber until her symptoms improve. Gradually reintroduce foods while monitoring for any adverse reactions. Keeping a food diary can help identify potential triggers.

- Hydration: Ensure she stays well-hydrated, especially if she is experiencing diarrhea. Oral rehydration solutions can help replenish lost fluids and electrolytes.

- Probiotics: These may help restore the balance of gut bacteria and improve digestive health. However, it's best to consult with a healthcare provider before starting any new supplements.

- Medication Review: If she is taking any medications, review them with her doctor to see if any could be contributing to her symptoms.

- Follow-Up: If symptoms persist or worsen, follow up with her healthcare provider for further evaluation and possible referral to a gastroenterologist.

In summary, while it is possible that your mother's condition may improve with dietary changes and medication, it is crucial to identify the underlying cause of her chronic diarrhea to ensure appropriate management. A healthcare professional can provide the necessary guidance and support to help her navigate this challenging situation.

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