Does your TSH seem to be all over the place?
First let’s start with what is TSH? TSH is the signal from the pituitary gland that tells the thyroid “hey there we need more hormone”. TSH is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH then triggers the pituitary gland release TSH thus telling the thyroid to begin producing T3 and T4.
What does a high TSH mean? High levels of TSH in the blood stream typically signal that the thyroid is underperforming. TSH causes the thyroid gland to make two hormones: triiodothyronine (T3-active) and thyroxine (T4 – inactive). T3 and T4 help control your body’s metabolism.
It’s frustrating going in for labs and the numbers are where they need to be so you adjust yet again, hoping this time it just might work. Or maybe even worse labs are perfect but you still feel terrible. Why is it that when TSH is tested it’s “off”? We are going to explore 15 different reasons this could be the case!