If all indicators of the pregnancy and the fetus are healthy, the simple occurrence of cough during pregnancy does not usually affect the fetus. The risk of miscarriage or preterm delivery increases significantly if the pregnant woman has the following conditions and has a prolonged and high frequency of coughing during pregnancy: history of previous multiple early miscarriages or preterm deliveries, cervical insufficiency, history of cervical surgery (conization or LEEP knife), uterine malformation or abnormal development (single bicornuate uterus, uterine septum), less than 18 months since the last pregnancy, excessive wasting (BMI <19), Multiple pregnancy, assisted reproduction (in vitro), prolonged heavy smoking, alcohol and drug abuse, etc. If the cough is not severe and there are no obvious fever symptoms, minimize the use of medication, ensure sufficient sleep, drink more hot water, and take oral Chinese medicine to reduce phlegm and cough; if the symptoms are not relieved, seek medical attention and complete the necessary laboratory tests and physical examination. According to the results of laboratory tests, oral medication should be administered under the guidance of a physician; because the mother is in a special physiological period after pregnancy, her immunity decreases and infection with influenza virus can easily lead to complications of various organs, such as pneumonia, myocarditis or pericarditis, which can be life-threatening; in late pregnancy, if the mother's cough does not heal for a long time, she should be alert to perinatal cardiomyopathy and heart failure, and should immediately visit a maternity hospital. In summary, a short, simple cough during pregnancy has little effect on the fetus; if the cough is heavy, prolonged or does not ease, you should seek medical attention and use medication under the guidance of a doctor, rather than self-medicating or leaving it alone.