Common viral colds in early pregnancy have a relatively small impact on the fetus, and epidemic viral colds may increase the chances of fetal malformations and miscarriages. Early pregnancy is just a common viral cold, body symptoms are relatively mild, such as sneezing, runny nose, no fever, even if the fever temperature will not be very high, belong to the self-limiting disease, about a week to recover, the impact on the fetus is relatively small. Early pregnancy is an epidemic viral cold, the physical symptoms are relatively serious, may be accompanied by high fever, pneumonia, the virus through the placental barrier into the fetus, may cause fetal congenital heart disease, harelip, microcephaly and so on. Viral colds cause high fever and metabolic disorders, stimulating uterine contractions to increase the chance of fetal miscarriage. Colds in early pregnancy should be taken seriously, and any abnormalities should be dealt with in a timely manner to minimize the impact on the fetus.