Low thyroid peroxidase antibodies are usually not important. Thyroid peroxidase antibody is a type of thyroid autoantibody that is involved in the destruction of the thyroid gland. Positive or high thyroid peroxidase antibody can assist in the diagnosis and treatment of autoimmune thyroid disorders, such as Hashimoto’s thyroiditis, postpartum thyroiditis, and atrophic thyroiditis. Low thyroid peroxidase antibodies are usually fine. If you are worried, you can improve your thyroid function and thyroid ultrasound, if there is no abnormality, you don’t need to worry about it, and you can have regular checkups. If you have abnormal thyroid peroxidase antibodies or abnormal thyroid function or thyroid ultrasound, or if you have any discomfort, you should go to the hospital for treatment under the guidance of your doctor.