Pregnancy stomach upset nausea and vomiting is mostly considered to be caused by hormonal changes in the body. Mild symptoms can eat light noodle soup, etc. to improve life, vomiting serious can be transfused, with vitamin B6, etc., to replenish water and electrolytes, relieve vomiting. Increased levels of chorionic gonadotropin in the body during pregnancy will cause stomach discomfort nausea and vomiting, which is a normal physiological phenomenon. This is a normal physiological phenomenon. If the phenomenon does not seriously affect the normal life and work, generally do not need special treatment. Usually eat some light noodle soup, fruit juice, etc., eat small meals, avoid overeating. Appropriate exercise and relaxation. But if there is violent vomiting, can not eat, etc. may cause dehydration, is not conducive to fetal growth and development. You can take oral rehydration salts or use electrolyte solution as prescribed by the doctor to replenish water and electrolytes to avoid dehydration. Vitamin B6 and other medications can also be used to suppress vomiting and relieve symptoms. In addition, nausea and vomiting during pregnancy may also be caused by other diseases such as gastritis, gastric ulcer, etc. If the vomiting can be tolerated, the use of drugs is generally not recommended, you can eat millet porridge and other light and easy to digest food, or drink yogurt and other supplemental probiotics to help digestion. If necessary, treatment under the guidance of a doctor. Nausea and vomiting during pregnancy, excluding pregnancy reaction and other normal physiological phenomena, may also be other reasons, should be timely consultation, under the guidance of the doctor to identify the causes, and reasonable treatment, do not blindly use drugs during pregnancy, so as not to affect the fetus.