From the NHS pages on hypothyroidism:
"Most cases of an underactive thyroid are caused by the immune system attacking the thyroid gland and damaging it, or by damage that occurs as a result of treatments for thyroid cancer or an overactive thyroid."
So far so good...most cases...got it.
"An underactive thyroid often occurs when the immune system, which usually fights infection, attacks the thyroid gland."
Yep...often then right?
" A condition called Hashimoto's disease is the most common type of autoimmune reaction that causes an underactive thyroid."
Got it. Autoimmune or treatment for cancer or hyperthyroid most common causes. Hashis is the most common ai cause. OK.
"Less commonly, a thyroid antibody test may be recommended after a thyroid function test. A thyroid antibody test is only likely to be recommended if your GP suspects you have an autoimmune thyroid condition."
Wait...what? Erm...you literally JUST said it was one of the most common causes. But the test for it is less common? Because my gp won't likely suspect the most common cause of an illness and test for it?
Seriously, how can the most common cause of an illness be the less commonly tested for??!
No real purpose to this post. Just feeling a bit incredulous. I thought the lack B12 deficiency knowledge was astounding. Now I discover I have this too and am likely gonna be faced with more blank expressions and general dismissiveness by the morons at my GP surgery 😩