Hmm. Interesting thought and possible explanation, however a quick search of the internet speaks of pills for hyperthyroidism with no mention of surgery.
sorry
“hyperthyroidisim” should read “HYPOthyroidism”
Search?
Goiter surgery used to be quite common. I’d be surprised if you never knew anyone with the problem.
The pills are usually hormone replacement to account for killing off the overactive thyroid.
http://www.mayoclinic.org/tests-procedures/thyroidectomy/basics/definition/prc-20019864