1. Can hypothyroidism patients conceive and raise children? ”People with hypothyroidism can work, live and marry like normal people as long as they insist on supplementing thyroid hormones. Young women, as long as their periods are normal, can also have children after marriage. However, it is advisable to visit the endocrinology department regularly to review T3, T4, FT3, FT4 and TSH in order to adjust the amount of thyroid hormones needed, especially before and after pregnancy. As the months of pregnancy increase, the amount of thyroid hormone needed increases accordingly, so the supplemental dose should be increased to ensure the health of the mother and normal growth and development of the fetus, and postnatal monitoring of the mother and child should be strengthened. 2.What is the effect of low thyroid hormone level in pregnant women on the fetus? If hypothyroidism patients do not receive timely and effective treatment during pregnancy, it will have a greater impact on fetal development, which can lead to hypertensive disorders during pregnancy, intrauterine abnormalities, low birth weight babies, premature birth, miscarriage, placental abruption, stillbirth, etc. It can also affect the development of the fetal nervous system and cause a decrease in intelligence. Given the changes in thyroid metabolism of the mother during pregnancy, monitoring thyroid function is beneficial for early diagnosis and treatment, reducing comorbidities and the impact on the fetus. In pregnant women with abnormal thyroid metabolism during pregnancy, fetal growth and development and heart rate should be monitored. After the birth of a newborn, the enlarged thyroid gland should be noted during physical examination, and thyroid hormone levels should be checked and followed up in the long term.