Pregnancy vomiting is the common result of many hormonal changes in the body of pregnant women, usually the end of pregnancy vomiting is a gradual process, slowly relieved by 3-4 months of pregnancy, but there will be some pregnant women’s pregnancy vomiting reaction may aggravate, mainly related to individual body differences, but also may be caused by multiple pregnancy, gravida, can go to the hospital for examination, to be clear after the cause, and then deal with. 1, individual differences: but subject to personal physical or Some pregnant women may experience aggravation of vomiting before the end of pregnancy due to factors such as high psychological stress, but the overall chance of occurrence is relatively low. Pregnant women should try to reduce exposure to irritating odors, eat more light food, eat less and more meals, and try not to eat spicy and irritating food; 2, multiple pregnancy: the hormone level in the body of pregnant women with multiple pregnancies is significantly higher than that of a single child, so not only will the reaction to pregnancy vomiting be more obvious, but also the situation of pregnancy vomiting may worsen before the end of pregnancy. If not dealt with in time, the vomiting reaction will gradually become more serious, and the uterus will increase in size, if combined with the ultrasound, the diagnosis of vomiting can be confirmed. Pregnant women need to go to the hospital for early hospitalization and treatment of uterus removal. After the removal of uterus, the hormone level should be reviewed regularly, strict contraception, and pregnancy should be considered only after 1 year.