There is a relationship between the attached ear and pregnancy. After the delivery of the fetus, a piece of redundant organism is found in the front of the ear, which is generally called the attached ear. The formation of the attached ear is a congenital deformity that occurs in the early stages of pregnancy, during embryonic development, and is related to the effects of bacteria, viruses, medications, radiation, or genetics in the early stages of pregnancy. Generally it can be removed by surgery after delivery of the fetus and will not affect other functions of the baby’s body. Therefore, in order to prevent the occurrence of fetal malformations, women should be given oral folic acid in early pregnancy.