Will Falconer, DVM Moderator
Hi Dede,
Good question, but I think we're seeing it in a larger population than just the purebreds. Hypothyroidism could be fairly called epidemic, IMO.
And why is it hypo? The gland is under autoimmune attack! What could possibly cause such immune confusion that would allow one's own immune system to attack one's own critical gland?
One main thing, in my mind: vaccinations.