Hypothyroidism from Birth: How Common is it?

I was born with hypothyroidism. Sometimes you can be born with it and the doctors don't check for it specifically but I was lucky because I've had family history of thyroid problems.

I was diagnosed pretty much as soon as I was born. I was born without thyroid glands at all.

I was diagnosed at 10 and that too because I got my periods way too early. It was very hard for me to get diagnosed as well. It took the doctors around 1½ year to reach a definitive answer.

I wasn’t but got diagnosed at age 11 x