A severe cold and cough in late pregnancy may affect the fetus, while a mild cough will not affect the fetus. If a pregnant woman has a viral upper respiratory infection and coughs violently and frequently, it may irritate the uterus, causing regular contractions and possibly premature rupture of membranes. Once the membranes rupture prematurely, there may be risks such as prolapse of the umbilical cord, intrauterine infections, and if the infection is severe or left untreated, it may lead to intrauterine ischemia and hypoxia in the fetus. In late pregnancy, the fetus has basically developed all important organs, if the pregnant woman is only a slight cough, and there is no fever, generally will not affect the development of the fetus. When a pregnant woman has a cold or cough in late pregnancy, it is recommended that she go to the hospital in time to find out the cause of the illness and actively cooperate with the treatment, so as to avoid adversely affecting the fetus.