The majority of pregnancy vomiting is caused by bile reflux due to severe pregnancy vomiting, but it may also be caused by acute gastroenteritis due to unclean diet, it is recommended to go to the hospital for a clear diagnosis and targeted treatment. 1. severe pregnancy vomiting: most women will experience nausea, vomiting and anorexia after pregnancy, which is mainly caused by the stimulation of progesterone for the gastrointestinal tract, and the degree of vomiting varies according to each individual’s The degree of vomiting is different for each individual, some women vomit violently and can vomit to dehydration or vomit bitter water, completely unable to eat. In this case, it is recommended that intravenous fluids be administered to maintain the body’s nutritional needs, and amino acids and vitamin B6 can be supplemented to stop vomiting as prescribed by the doctor. In addition, it is also recommended that women do biochemical examination, according to the results of the examination and then appropriate supplementation of potassium, sodium, chlorine and other fluids; 2, acute gastroenteritis: due to eating unhygienic food leading to acute inflammation of the gastrointestinal tract, diarrhea, nausea, vomiting, in serious cases will lead to vomit in the case of bile, there will be vomiting bitter water, it is recommended to do routine stool examination and biochemical examination as soon as possible. After the diagnosis is clear, you can use compound sodium chloride as prescribed by the doctor and actively treat the intestinal inflammation, such as oral cefuroxime. It is important to avoid blind medication to avoid adverse effects on fetal growth and development.