Hyperparathyroidism is when the body makes too much parathyroid hormone (PTH). PTH is made in the parathyroid gland. It helps to balance calcium levels in the blood. High PTH causes too much calcium in the blood. There are three types:
Walker M, Bilezikian P. Primary hyperparathyroidism: recent advances. Curr Opin Rheumatol . 2018 Jul;30(4):427-439.
Last reviewed March 2020 by
EBSCO Medical Review Board
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Last Updated: 1/18/2021
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