Most patients with early pregnancy may experience nausea, vomiting and other gastrointestinal symptoms, which are more common. Some patients may also experience dizziness, drowsiness, sleepiness, fatigue and weakness. Some patients may experience hunger, a pronounced desire to eat, or a change in eating habits, and some may experience a loss of appetite. Some patients may not have any clinical symptoms because of their physical condition. Most of the pregnant women in the third trimester of pregnancy, these early pregnancy reactions will be significantly relieved, generally patients do not need any treatment, but for the occurrence of severe pregnancy vomiting, pregnancy combined with the occurrence of dehydration, the need for timely hospitalization for rehydration, supplemental nutrition and other aspects of treatment.