Irritable bowel syndrome is a common functional gastrointestinal disease, primarily characterized by symptoms such as abdominal pain, and changes in bowel habits and stool characteristics, with alternating constipation and diarrhea. Generally, abdominal pain eases after defecation. This disease usually does not involve vomiting. If vomiting occurs, it may indicate a possible gastrointestinal dysfunction, which is similar to irritable bowel syndrome as both are functional gastrointestinal disorders without organic lesions, but they manifest as symptoms of the gastrointestinal tract and digestive system. In the presence of such symptoms, it is recommended to use medication that enhances gastric motility to stop vomiting, and symptomatic treatment can be very effective.