Euthyroid means normal thyroid function and does not mean Graves disease is in remission (The thyroid gland is the victim, not the cause).
For Graves to be in remission, you must not have any (or very very little) TSI (thyroid stimulating immunoglobulin) which causes the production of the thyroid hormone. TSI is the direct cause of hyperthyroidism in Graves’ disease and TED. TSI will continue to be elevated if there are still environmental triggers.
There are 2 things that stimulate your thyroid:
TSH
TSI
TSI ‘pretends’ to be TSH and your thyroid makes more and more thyroid hormones all the while your TSH thinks you have too much so less and less TSH is made – Hence, Hyperthyroidism.
The goal is, is to get those nasty buggers to leave. You can do this with the ATD therapy. Where as RAI will only make them angry (sorta speak) and they will search for something else to attack ie: eyes. Same thing with surgery, but not as bad as RAI. With TT there is ‘some’ thyroid tissue left. Obviously because of nerves, vocal cords, and parathyroids. Some believe that removing the thyroid will in fact remove the antibodies. I wish this was true. Fact is, TSI can be found in the brain, skin, bones, eyes
