If a pregnant woman has high thyrotropin, she should consider whether she has hypothyroidism. Generally speaking, to check the thyroid function is to check the T3, T4, TSH or peroxidase antibody, and after the endocrinologist’s diagnosis and treatment, to consider whether there is a combination of hypothyroidism in pregnancy. If there is hypothyroidism in pregnancy, it is recommended to give levothyroxine tablets for oral treatment, and pay attention to eat more food containing seaweed. Hypothyroidism in pregnancy has an impact on the growth and development of the baby, for example, it may cause early preeclampsia or miscarriage, and then it may affect the intellectual development of the baby. Therefore, if a pregnant woman has high thyroid stimulating hormone, she should see an obstetrician and an endocrinologist for a clear diagnosis so that she can be treated accordingly to avoid something serious from happening.