Two Weeks of Diarrhea: When to Seek Medical Attention? - Gastroenterology and Hepatology

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Diarrhea for two weeks?


Hello Doctor: I am 41 years old, with a height of 159.3 cm and a weight of 51.2 kg.
This month, I switched to a night shift from 19:00 to 07:00.
I have a regular habit of having a bowel movement once a day, typically 1-2 hours after finishing work.
Since switching to the night shift, I have experienced diarrhea without abdominal pain or cold symptoms, having a bowel movement once a day for over two weeks.
The stools are primarily watery, with occasional soft stools.
Should I seek medical evaluation, or would it be sufficient to increase my intake of fruits and vegetables, as I tend to eat more meat and less vegetables? Should I also consider taking vitamin supplements?

Shunhao, 40~49 year old female. Ask Date: 2024/05/22

Dr. Hu Guozheng reply Gastroenterology and Hepatology


If there are more than three bowel movements per day and the stools are watery and unformed, it is referred to as diarrhea.
If it persists for more than four weeks, it is classified as chronic diarrhea.
There are many potential causes of diarrhea, including infections, medications, dietary factors, malabsorption, diseases, and emotional stress.
It is advisable to first adjust the diet by avoiding irritants and greasy foods, ensuring adequate hydration and electrolyte replenishment, and getting appropriate rest while maintaining emotional stability.
If there is no improvement, it is recommended to consult a gastroenterologist.
Thank you.

Reply Date: 2024/05/22

More Info


When experiencing diarrhea that lasts for two weeks, it is important to assess the situation carefully. Diarrhea can have various causes, including infections (viral, bacterial, or parasitic), dietary changes, stress, or underlying medical conditions. Given that you have recently transitioned to a night shift, this change in routine could also be a contributing factor to your gastrointestinal symptoms.

In your case, since you are experiencing diarrhea without abdominal pain or other symptoms like fever or respiratory issues, it may not seem urgent. However, persistent diarrhea for more than a few days can lead to dehydration and may indicate an underlying issue that requires medical attention. Here are some guidelines on when to seek medical care:
1. Duration: If diarrhea persists for more than 48 hours, it is advisable to consult a healthcare provider. Since you mentioned that it has already lasted for over two weeks, this is a significant duration that warrants further evaluation.

2. Dehydration Signs: Watch for signs of dehydration, which can include excessive thirst, dry mouth, reduced urine output, dizziness, or fatigue. If you experience any of these symptoms, seek medical attention promptly.

3. Dietary Considerations: While increasing your intake of fruits and vegetables can be beneficial for digestive health, it is also important to maintain a balanced diet. If your diet has shifted significantly towards meat and away from fiber-rich foods, this could impact your bowel habits. Consider incorporating soluble fiber (found in oats, bananas, and apples) to help firm up stools.

4. Vitamin and Mineral Supplementation: If your diet lacks certain nutrients, supplementation may be helpful. However, it is best to consult with a healthcare provider before starting any new supplements, especially if you are experiencing gastrointestinal issues.

5. Other Symptoms: If you start to develop additional symptoms such as fever, severe abdominal pain, blood in your stool, or if the diarrhea becomes more frequent or severe, you should seek medical attention immediately.

6. Underlying Conditions: If you have a history of gastrointestinal disorders (such as irritable bowel syndrome, inflammatory bowel disease, or food intolerances), it is important to discuss these with your healthcare provider, as they may influence your current symptoms.

In summary, while dietary adjustments and hydration are important, given the duration of your symptoms, it would be prudent to consult a healthcare provider for a thorough evaluation. They may recommend tests such as stool analysis or blood tests to identify any underlying infections or conditions. Early intervention can help prevent complications and ensure proper management of your symptoms.

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