Left Upper Abdominal Bloating: Causes and Concerns - Gastroenterology and Hepatology

Abdominal bloating

For the past two and a half months, I have been experiencing bloating in the upper left abdomen.
When lying down and tapping on the upper left abdomen, I can hear sounds, while there are no abnormal sounds on the right side.
When standing, I particularly feel the bloating in the upper left abdomen, but it is less noticeable when lying down.
I have regular bowel movements at the same time every day, with no constipation or blood in the stool, but I have lost two kilograms.
My other daily activities and lifestyle are not affected.

Could you please tell me where bloating associated with colorectal cancer typically occurs in the abdomen? Also, what could be the possible causes of persistent bloating in the upper left abdomen?

Mr. Chen, 60~69 year old female. Ask Date: 2023/05/25

Dr. Hu Guozheng reply Gastroenterology and Hepatology

Hello, it is recommended to visit the outpatient clinic for evaluation.
Thank you.

Reply Date: 2023/05/25

More Info

Understanding left upper abdominal bloating can be quite complex, as it can stem from various underlying conditions. The symptoms you describe—persistent bloating in the left upper abdomen, sounds when tapping on that area, and the absence of issues on the right side—suggest that the problem may be localized to the structures in that region.
The left upper abdomen houses several important organs, including the stomach, spleen, pancreas, and parts of the colon. Bloating in this area can be attributed to a variety of causes, such as gastrointestinal disorders, dietary habits, or even stress. Given that you have been experiencing this bloating for two and a half months, it is essential to consider both functional and organic causes.

1. Functional Gastrointestinal Disorders: Conditions like Irritable Bowel Syndrome (IBS) can lead to bloating and discomfort. IBS is characterized by a combination of symptoms, including abdominal pain, bloating, and changes in bowel habits. Stress and dietary factors often exacerbate these symptoms.

2. Gastric Issues: Gastritis or functional dyspepsia could also be contributing to your bloating. These conditions can cause discomfort, especially after eating, and may lead to sensations of fullness or bloating.

3. Pancreatic or Splenic Concerns: Given the location of your symptoms, issues related to the pancreas or spleen could also be a factor. Conditions such as pancreatitis or splenic enlargement can cause discomfort and bloating.

4. Colonic Factors: While you mentioned that you have regular bowel movements and no blood in your stool, it is still possible for conditions like diverticulitis or colonic obstruction to cause localized bloating. The left side of the colon, particularly the descending colon, can be a source of discomfort if there are issues present.

5. Dietary Factors: Your diet can significantly impact bloating. Foods that are high in fiber, certain carbohydrates, or even lactose can lead to increased gas production and bloating. Keeping a food diary may help identify any potential triggers.

6. Weight Loss: The unintentional weight loss of two kilograms is noteworthy. While it may not seem significant, any unexplained weight loss should be evaluated, as it can sometimes indicate an underlying health issue, including malignancies.

Regarding your concern about colon cancer, it is essential to note that while bloating can be a symptom, it is typically accompanied by other signs such as changes in bowel habits, significant weight loss, or blood in the stool. In terms of the location of discomfort, colon cancer can occur in various parts of the colon, but left-sided colon cancers may present with symptoms in the left lower quadrant rather than the upper quadrant.

Given your symptoms and the duration of your bloating, it is advisable to seek medical evaluation. A healthcare provider may recommend imaging studies, such as an abdominal ultrasound or CT scan, and possibly endoscopic procedures to assess the gastrointestinal tract. Additionally, laboratory tests, including blood work and stool tests, can help rule out infections or other conditions.

In summary, while left upper abdominal bloating can arise from various causes, it is crucial to consult with a healthcare professional for a thorough evaluation. They can provide a tailored approach to diagnosis and treatment based on your specific symptoms and medical history.

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