immune system may produce antithyroid
antibodies that destroy thyroid tissue. An antithyroid
antibody test determines whether you have these antibodies.
Increased levels of antithyroid antibodies may mean that you have autoimmune hypothyroidism (Hashimoto's thyroiditis) or autoimmune hyperthyroidism (Graves' disease). But some people who have
hypothyroidism or hyperthyroidism never test positive for antithyroid antibodies. Also, people who
test positive for antithyroid antibodies may never develop hypothyroidism or hyperthyroidism.
It is possible that the main title of the report Graves' Disease is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.