Low thyroid stimulating hormone (TSH) in pregnant women may be physiological, avoid eating iodine-rich foods can be, without special treatment; may also be hyperthyroidism, need to be treated with anti-thyroid drugs.
1. Physiological reasons: early pregnancy human chorionic gonadotropin levels rise, and TSH structure is similar to the role of TSH receptors on the surface of the thyroid gland, thyroid hormone levels rise, the negative feedback on the pituitary gland leads to lower levels of thyroid stimulating hormone, general mid-pregnancy can be restored to normal, no need for special treatment, and to avoid eating iodine-rich foods can be.
2. hyperthyroidism: pregnant women with low thyroid stimulating hormone may be due to hyperthyroidism, hyperthyroidism in pregnancy treatment to anti-thyroid drugs, early pregnancy is mainly propylthiouracil, middle and late to methimazole-based, mid-pregnancy can also be surgical treatment.
Pregnant women with low thyroid stimulating hormone should go to the hospital, under the guidance of the doctor to clarify the cause and treatment.