Nausea and vomiting in early pregnancy is a normal physiological phenomenon. Hormonal changes in the body after pregnancy will cause the symptoms of nausea, and the early pregnancy reaction will disappear in about 3 months of pregnancy. The symptoms of early pregnancy reaction after pregnancy are different, some are mild nausea, some are violent nausea and vomiting, the vomit is the residue in the stomach, if the vomiting is serious, there is nothing in the stomach will be nausea and vomiting. Some will also vomit acid, bitter water, etc., which is caused by bile reflux into the stomach, violent vomiting during pregnancy requires hospitalization, so as not to be able to eat for a long time caused by malnutrition will affect the development of the fetus, you can go to the hospital infusion to replenish energy. It is recommended to use vitamin B6 reasonably under the guidance of a doctor to stop vomiting. In the early pregnancy reaction, it is best to eat more vegetables and fruits, which can relieve the vomiting symptoms.