Standing up straight, the stomach feels very bloated.

Jun 05, 2023 Source: Cainiu Health

Dr. Zhou Chao

Introduction

In general, a bloated abdomen with an upright posture may be caused by intestinal obstruction, functional dyspepsia, chronic gastritis, or other conditions. Besides these three causes, it could also result from other diseases such as gastric ulcer, severe hepatitis, or stomach cancer. If you experience any discomfort, seek medical attention immediately to avoid delaying treatment and prevent serious consequences.

Under normal circumstances, abdominal bloating when sitting up straight may be caused by conditions such as functional dyspepsia, chronic gastritis, or intestinal obstruction. Specific analyses are as follows:

1. Functional Dyspepsia

This condition results from disturbances in stomach and duodenal function without any organic lesions. In addition to bloating, patients may also experience abdominal pain, belching, loss of appetite, and nausea. Patients can take prokinetic medications such as metoclopramide tablets or domperidone tablets as directed by a physician.

2. Chronic Gastritis

Due to atrophy of gastric wall cells, reduced gastrointestinal function, and decreased gastric acid secretion, digestion is impaired and gastric emptying slows down. Accumulation of food in the stomach can lead to symptoms such as bloating. Alternatively, when incompletely processed food passes from the stomach into the small intestine, it increases the burden on the intestines and slows digestion, which can also cause a sensation of abdominal distension. Patients may take medications such as rabeprazole tablets or sucralfate chewable tablets as prescribed by a doctor.

3. Intestinal Obstruction

When the contents of the intestine cannot pass smoothly, intestinal dilation and increased intraluminal pressure occur, leading to symptoms such as abdominal pain, bloating, vomiting, cessation of bowel movements, and inability to pass gas. Patients are advised to fast and undergo gastrointestinal decompression to stimulate colonic motility. Alternatively, medications such as麻仁丸 (Maren Wan) or amoxicillin capsules may be taken according to medical advice.

Besides the three causes mentioned above, other possible causes include gastric ulcers, pyloric obstruction, severe hepatitis, and stomach cancer. If discomfort occurs, seek immediate medical attention.

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