The symptoms of irritable bowel syndrome (IBS) may be somewhat related to the stomach. IBS is considered a type of functional dyspepsia, with main symptoms including abdominal pain, bloating, diarrhea, constipation, or an alternation between diarrhea and constipation. Patients may also experience some symptoms related to the stomach such as acid reflux, burping, heartburn, nausea, and vomiting. If these symptoms occur, it is recommended to visit the gastroenterology department of a reputable hospital as soon as possible and to undergo a gastroscopy to confirm the diagnosis. Effective medication can be chosen based on the above symptoms and those of irritable bowel syndrome for treatment.