Early pregnancy vomiting may be related to early pregnancy reaction, pregnancy vomiting, gastroenteritis, etc., to deal with the cause. 1. Early pregnancy reaction: HCG elevation in the body of pregnant women in early pregnancy will cause early pregnancy vomiting reaction, it is recommended to eat small meals, avoid fasting, if necessary, follow the doctor’s advice to give medication to stop vomiting treatment, such as vitamin B6, metoclopramide and so on. 2. Pregnancy vomiting: If there is severe and persistent nausea, vomiting, and cause dehydration, ketosis or even acidosis, consult a doctor as soon as possible, give general set of psychological supportive treatment; correct dehydration and electrolyte disorders, rehydration, replenishment, supplementation of vitamin B6, vitamin B1, vitamin C, etc., and supplementation of potassium therapy if necessary; vitamin B6, metoclopramide and other medications to stop vomiting treatment. 3. Gastroenteritis: early pregnancy bacterial infection caused by gastroenteritis can be accompanied by nausea and vomiting, can follow the doctor’s instructions to take oral rehydration salts to ensure electrolyte balance, you can also take probiotics to regulate intestinal flora. If you feel unwell during pregnancy, it is recommended that you seek prompt medical attention.