Frequently asked question: What is hypothyroidism?

If your thyroid gland works too slowly, then too little thyroid hormone will be produced and too little hormone will end up in your bloodstream. Your body will then have a thyroid hormone deficiency. This condition is called hypothyroidism.
Hypothyroidism may be present at birth (congenital hypothyroidism) or it can develop later on during childhood or adolescence.

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