Frequent nausea, want to vomit may be physiological reasons and pathological reasons, such as chronic gastritis, gastrointestinal neurosis and so on. 1. Physiological reasons: If women of childbearing age have sex, early pregnancy may cause changes in hormone levels in the body, nausea and vomiting. 2. Pathologic causes: (1) chronic gastritis: due to chronic and repeated inflammation of the gastric mucosa, the gastric mucosa has a functional decline, and the digestion and absorption functions are disturbed. When it involves the vicinity of the pyloric duct of the stomach, it can cause the dysfunction of the pyloric duct and frequent nausea and vomiting. (2) Gastrointestinal neurosis: Neurological gastrointestinal dysfunction caused by emotional anxiety, stress at work and study, and anxiety, resulting in the inability of the stomach and intestines to digest food, thus causing nausea and vomiting. Frequent nausea and vomiting may also be caused by other reasons, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for further examination, with the help of the doctor to clarify the causes, and targeted treatment or therapy.