The symptoms of abdominal distension are usually abdominal fullness and discomfort, mainly in the left lower abdomen and upper abdomen. Some patients may have nausea, vomiting, or even feelings related to heartburn, acid reflux, abdominal pain, and discomfort involving the lower back. Some patients may experience relief of symptoms after passing gas and stool. There is no way to clarify the specific cause and diagnosis through abdominal distension alone, nor can the disease be diagnosed through symptoms alone. The diagnosis can only be made after a comprehensive analysis and evaluation by combining medical history, symptoms, signs, and ancillary examinations, such as gastroscopy, colonoscopy, abdominal fluoroscopy, and stool routine. In addition, it can be combined with bifidobacteria capsules for symptomatic relief.