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An underactive area of the brain.
Confused over thyroid test results Dealing with hair loss caused by thyroid medication Do I have an underactive thyroid?
My Mom's got an over-active thyroid and I'm worried My twin sister has an underactive thyroid... .
If the TSH level is high this means that you are not having adequate thyroxine to allow for your underactive thyroid gland.
My Mom 's got an over-active thyroid and I 'm worried My twin sister has an underactive thyroid....
Hypothyroidism, or underactive thyroid, develops when the thyroid gland fails to produce or secrete as much thyroxine (T4) and triiodothyonine (T3) as the body needs.