Iodine deficiency in women may affect fertility. Iodine deficiency may cause abnormal thyroid function, affect fetal development and other problems, which should be taken seriously. Iodine deficiency in the female organism may cause abnormal thyroid function, which may lead to menstrual disorders and abnormal ovulation, thus reducing the probability of pregnancy. Iodine also plays a relatively important role in the development of the fetus. Iodine deficiency may affect the brain growth and intellectual development of the fetus, and may also cause malformations in the development of the fetus, which may lead to preterm labor, preterm miscarriage and other serious problems. Women with iodine deficiency should take iodine supplements under the guidance of a doctor, and regularly review their physical condition and the condition of the fetus, and intervene in a timely manner when problems are detected to avoid serious effects.