Patients with hypothyroidism can get pregnant. It is recommended that thyroid function be maintained at a normal level before pregnancy, and that thyroid function be monitored regularly. Low levels of thyroid hormones in hypothyroidism patients may make it difficult for women to get pregnant, or cause miscarriages with aura, or cessation of fetal development during pregnancy, as well as affecting the neurological development of the fetus, which can lead to children born with cretinism. If a hypothyroid patient wants to get pregnant, she should take levothyroxine sodium tablets as a replacement therapy under the guidance of her doctor to control her thyroid hormones to normal levels before she can get pregnant, and she should have her thyroid function checked every 4-6 weeks after she gets pregnant. Patients with hypothyroidism should prepare for pregnancy under the guidance of a doctor.