Whether or not the fetus will be affected by a cold depends on the severity of the cold. A mild cold will not have much effect on the fetus, while a severe cold may lead to abnormal development of the fetus. 1. For a mild wind-heat cold, there will be sneezing, runny nose and other symptoms, which do not have much effect on the pregnant woman and the fetus. At this time, you should pay attention to rest, drink more water, eat more vegetables and fruits in moderation to supplement water and vitamins, which can generally be relieved on their own. 2. When suffering from a severe cold, in addition to the symptoms of sneezing and runny nose, there can also be persistent high fever. The body functions of the pregnant woman are affected when she has a fever, resulting in insufficient rest and impaired nutritional intake, which will have an adverse effect on the fetus. This kind of cold is mostly caused by viral infection, and the virus enters the fetus through the placenta, which may affect the development of the fetus. Colds during pregnancy should not be treated with drugs indiscriminately. Some drugs will enter the blood circulation through the placenta, which can also cause the growth and development of the fetus to be affected. At this time, in addition to resting more and drinking more water, you should consult a doctor in time. If a pregnant woman has a wind-heat cold, she should consult a doctor in time and use medication under the guidance of a specialist.