It can also be the result of thyroid inflammation, iodine deficiency, or issues with the pituitary gland in the brain which regulates the thyroid gland. (healthtestexpress.com)
TPOAb levels are thought to be specific for autoimmune thyroiditis, as they reflect thyroid inflammation. (ericbakker.com)
Even 25 mcg in Se supps, especially if taken daily or almost daily, can aggravate some Hashi patients, myself included, with potent thyroid inflammation. (thyroidpharmacist.com)