What Causes Secondary Hypothyroidism?

Q:
What causes secondary hypothyroidism?

A:
Secondary hypothyroidism occurs when another problem interferes with the thyroid’s ability to produce hormones. For example, the pituitary gland or hypothalamus produce hormones that trigger the release of thyroid hormone. A problem with one of these glands can make your thyroid underactive.

Key word: secondary hypothyroidism

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