Chronic Diarrhea and Abdominal Pain: Seeking Answers for Persistent Symptoms - Gastroenterology and Hepatology

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Chronic diarrhea and abdominal pain?


Hello, Vice Dean Chen.
I am 28 years old, but since October of last year, I have been experiencing frequent loose stools and even diarrhea (with significant abdominal pain).
I went to a small hospital where I underwent a CT scan, colonoscopy, and gastroscopy, but my condition has been fluctuating.
By March, the diarrhea became more frequent, and recently it has worsened.
I have been experiencing continuous pain in my lower left abdomen for almost two weeks (certain positions, such as bending over, squatting, getting up, and sometimes even walking, can trigger a dull pain).
My stools are still loose and watery, and the toilet water has never been clear, which makes me quite anxious about why my abdomen isn't improving.
I have seen doctors, and based on my description, they have diagnosed me with irritable bowel syndrome.
I have been taking medications like enteric-coated tablets for irritable bowel syndrome, Mebeverine, and Scanol, but my symptoms have not improved.
I am starting to wonder if the CT images from the small hospital were of poor quality (I checked, and they use a 4-slice CT).
To put it simply, I am concerned that I might have cancer.
I would like to ask the doctor if the quality of a 4-slice CT scan is reliable and if I need to undergo another abdominal CT scan.

A-Zhen, 20~29 year old female. Ask Date: 2022/05/07

Dr. Chen Shidian reply Gastroenterology and Hepatology


Only a fecal occult blood test is needed.
The symptoms described are likely related to irritable bowel syndrome, and managing anxiety is also necessary for improvement.

Reply Date: 2022/05/07

More Info


Chronic diarrhea and abdominal pain can be distressing and significantly impact your quality of life. Based on your description, it seems you have been experiencing these symptoms for quite some time, and despite undergoing various diagnostic tests, including CT scans and endoscopies, you have not found relief. This situation can understandably lead to anxiety and concern about potential underlying conditions, including the fear of serious diseases like cancer.

Firstly, it’s important to recognize that chronic diarrhea and abdominal pain can stem from a variety of causes. Some common conditions that may lead to these symptoms include:
1. Irritable Bowel Syndrome (IBS): This is a functional gastrointestinal disorder characterized by abdominal pain and altered bowel habits, including diarrhea and constipation. It often occurs in response to stress or dietary changes.

2. Inflammatory Bowel Disease (IBD): This includes conditions like Crohn's disease and ulcerative colitis, which cause chronic inflammation of the gastrointestinal tract. Symptoms can include abdominal pain, diarrhea, and weight loss.

3. Infections: Bacterial, viral, or parasitic infections can lead to diarrhea and abdominal pain. These infections can sometimes persist or recur, especially if there are underlying issues with the immune system.

4. Food Intolerances or Allergies: Conditions such as lactose intolerance or celiac disease can cause gastrointestinal symptoms when certain foods are consumed.

5. Malabsorption Syndromes: Conditions that affect the absorption of nutrients in the intestines can lead to diarrhea and abdominal discomfort.

6. Colorectal Issues: Although less common in younger individuals, conditions such as polyps or colorectal cancer can present with similar symptoms. However, these are typically accompanied by other signs, such as blood in the stool or significant weight loss.

Regarding your concern about the quality of the CT scan performed at the smaller hospital, it is true that the quality of imaging can vary based on the equipment and protocols used. A 4-slice CT scanner is generally less detailed than a multi-slice scanner, which can provide more comprehensive imaging of the abdominal organs. If you feel that the initial imaging may not have been adequate, discussing the possibility of a repeat CT scan with your physician could be beneficial. This may help rule out any structural issues that were not visible in the previous scans.

In terms of managing your symptoms, it is crucial to maintain open communication with your healthcare provider. If the medications you have been prescribed for IBS are not providing relief, it may be worth exploring other treatment options or seeking a second opinion from a gastroenterologist. They may suggest additional tests, such as stool studies, breath tests for food intolerances, or even a colonoscopy if not already performed, to further investigate the cause of your symptoms.

Additionally, consider lifestyle modifications that may help alleviate your symptoms. Keeping a food diary can help identify any potential triggers related to your diet. Stress management techniques, such as mindfulness, yoga, or cognitive behavioral therapy, may also be beneficial, especially if stress exacerbates your symptoms.

In conclusion, while your symptoms are concerning, they are not uncommon, and many potential causes exist. It is essential to work closely with your healthcare provider to explore these options and find a management plan that works for you. If you continue to feel anxious about your health, do not hesitate to express these concerns to your doctor, as they can provide reassurance and support throughout your diagnostic journey.

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