Generally, after treatment, patients with hypothyroidism may be able to keep the fetus if the thyroid function is more normal during pregnancy. However, if the condition is poorly controlled, it may affect the neurodevelopment of the fetus and fetal preservation is not recommended. Some pregnant women undergo perinatal checkups which show that they have hypothyroidism, i.e. hypothyroidism. If the condition is detected early, it is recommended to go to the Department of Obstetrics and Gynecology or the Department of Endocrinology of regular hospitals for relevant treatment, such as taking eugenol. If the thyroid function can be maintained at a normal level after treatment, the fetus can be retained. However, if hypothyroidism is not effectively controlled after treatment, especially in early pregnancy, it may affect the development of the child’s intellect and nervous system, and the child is usually born with abnormal intelligence, so it is recommended not to have the child. In addition, pregnant women need to pay attention to light diet, do not overeat, avoid eating too high fat content, high sugar content of food, etc., and at the same time follow the doctor’s instructions with medication.