Nausea, vomiting and hiccups are related to gastritis, peptic ulcers, indigestion and improper diet. When gastritis is present, the peristaltic function of the stomach is limited because the gastric mucosa becomes congested and edematous, so the food ingested into the stomach cannot be emptied in time and a large amount of gas is produced. Peptic ulcers mainly include gastric ulcers and duodenal bulb ulcers, which not only cause severe pain, but also cause excessive secretion of gastric acid, which affects the peristaltic function of the stomach and causes abdominal discomfort due to food irritation to the stomach wall. In the presence of dyspepsia, the peristaltic function of the stomach and intestines is slow, so the retention time of food in the digestive tract is relatively longer, and the patient may also show nausea, vomiting and burping. Eating irritating, indigestible foods such as chili peppers, cold drinks, and fatty meats can also irritate the stomach lining and cause spasms and contractions in the stomach, which can lead to nausea, vomiting, and hiccups.