Frequent nausea and vomiting are mainly considered to be gastroenteritis, irritable bowel syndrome, pregnancy and other conditions. 1. Gastroenteritis: when patients eat unclean, poorly digested food, resulting in intestinal bacterial hyperplasia, gastrointestinal peristalsis obstacles, gastric contents can not be digested and absorbed, manifested in nausea, vomiting and other discomforts. 2. Irritable Bowel Syndrome (IBS): When the patient is under too much mental stress, too nervous, too obvious emotional fluctuations, gastrointestinal dysfunction will occur, intestinal flora imbalance, resulting in nausea, vomiting and other discomforts. 3. Pregnancy: when women of childbearing age become pregnant, the reaction of pregnancy vomiting occurs, which is manifested as frequent nausea and vomiting. In addition, frequent nausea and vomiting may have other causes, such as stomach cancer, etc. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.