Thyroid-stimulating hormone (TSH)
Also known as:
A thyroid-stimulating hormone (TSH) blood test is used to check for thyroid gland problems. TSH is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH then triggers the pituitary gland to release TSH. See pictures of the thyroid gland and the pituitary gland.
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