The normal value of anti-thyroid peroxidase antibodies is <60 IU/ml, with slight variations in different laboratory parameters. Antithyroid peroxidase antibody exists in the microsomes of thyroid cells, it is a kind of thyroid autoimmune antibody, which is related to autoimmune thyroid disease, the normal value is <60IU/ml, but due to the different reagents and testing methods, the normal value range may be slightly different, and the specific range needs to be based on the reference value of the test report. If the test report shows positive anti-thyroid peroxidase antibody, it is considered that it may be caused by hyperthyroidism or Hashimoto's thyroiditis, etc. It is recommended to further improve the relevant examinations, such as thyroid function, thyroid ultrasound, etc., to make a clear diagnosis, and then comply with the doctor's instructions for symptomatic treatment.