What is Hypoparathyroidism? Hypoparathyroidism is a rare endocrine disorder characterized by insufficient or no production of parathyroid hormone (PTH) by the parathyroid glands. PTH plays a key role in regulating serum calcium and phosphate levels in the blood. Lack of sufficient PTH leads to abnormally low levels of calcium in the blood (hypocalcemia) and high levels of phosphate... https://social-lyft.com/story8061810/rise-the-of-software-rental-services-and-their-applications