Thyroglobulin antibodies are autoantibodies to thyroglobulin, which are closely related to damage to thyroid tissue and can cause a variety of thyroid disorders. The normal reference range of anti-thyroglobulin antibodies generally varies according to different hospitals, different testing methods and different instruments. If the ECLIA method is used, the result is often less than 115 IU/mL. Therefore, if the test value reaches 200 IU/mL or more, it indicates an autoimmune thyroid disease, which means that the body has produced thyroid antibodies against itself, and is an autoimmune abnormality. These people are prone to become hyperthyroid or hypothyroid afterwards, and hyperthyroidism or hypothyroidism can also have an effect on pregnancy, with a higher rate of miscarriage after pregnancy compared to the general population, so it is recommended that thyroid function be normal before preparing for pregnancy. However, if the three indicators of thyrotropin (TSH), free triiodothyronine (FT3) and free thyroxine (FT4) are at normal values, you are not hyper- or hypothyroid. If you are pregnant, you should go to the hospital for regular maternity checkups to observe the development of the fetus. In addition, you should pay attention to a balanced diet during pregnancy, control the intake of iodine in the diet within a safe range, prohibit smoking and alcohol, and do not take drugs casually. At the same time, you should pay attention to rest, ensure sufficient sleep time, do not stay up late, and adhere to appropriate exercise every day to maintain a happy mood.