& @valtron Good morning - I think your endocrinologists' will have useful answers for you. Here is what Mayo Clinic has to say about thyroid nodules:
https://www.mayoclinic.org/diseases-conditions/thyroid-nodules/diagnosis-treatment/drc-20355266
My nodules have been watched annually for over 20 years. They were first observed on ultrasound (one was very large & you could palpate it - which led to the test in the first place.) I was very nervous about it, and consented to an ultrasound guided biopsy - but by the time it happened, the largest nodule had shrink & solidified, so no fluid could be drawn. The smaller ones were too small for the needle to penetrate without also penetrating surrounding blood vessels. Let me say it was a thoroughly miserable experience, leaving me with a very sore & bruised neck and no answers.
Fast forward 10 years, I was diagnosed with Graves disease (hyperthyroid) brought on by another condition. The nodules were still present & slightly changed, so another biopsy was done. Still a miserable procedure, but at least we got answers - no cancer.
And another 10 years - we will be doing another ultrasound in May - my fingers tell me the original nodule is slightly larger, but I am still confident that "watch and wait" is the right answer for me.
Sue