Hyperthyroidism affects several systems and organs of the body, leading to an imbalance in their functional status, among which the reproductive system is no exception, which can be characterized by irregular menstruation, reduced and irregular ovulation, or even the absence of ovulation. Therefore, hyperthyroidism can lead to infertility in women of childbearing age, or it is not easy to get pregnant, and leaves unsuitable for pregnancy. On the contrary, after six months of 131 iodine treatment, hyperthyroidism symptoms are relieved or cured, and the biochemical indexes of thyroid function return to normal then you can get pregnant, and it is easy to conceive. As 131 iodine is mostly ingested by the thyroid gland, the radiation to the ovaries and other reproductive systems is relatively low, and soon decay and excretion, after 3 months of treatment, there is almost no radiation in the body, so 131 iodine treatment for hyperthyroidism will not have an impact on the reproductive system, and it is very safe to get pregnant after 6 months of treatment. Henan Provincial People’s Hospital Nuclear Medicine Gao Yongju hypothyroidism once diagnosed, the treatment is relatively simple, using sodium levothyroxine tablets as a replacement therapy, the thyroid hormone levels can be adjusted to normal. As the treatment only supplements the insufficient thyroid hormone in the patient’s body, as long as the body’s thyroid hormone level is adjusted to the normal range, it will not cause damage to the liver and kidney function and hematopoietic system; it will also not affect the pregnancy and breastfeeding. It is just like the reason that you can’t grow your own food, but buy food to eat.