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Although I have not had thyroid cancer, I did have half of my thyroid removed because it was "precancerous". At that time my doctor said that if you're gonna have cancer, thyroid is the one to have because it is very treatable and rarely spreads. My sister in law did have full blown thyroid cancer. They removed her entire thyroid and put her on medications which she takes every day. I know thyroid cancer is sometimes treated with radioactive iodine as well.