
Your body may not get enough calcium from your diet, often because your digestive system doesn't absorb the calcium from food. Factors that may result in secondary hyperparathyroidism include: This causes your parathyroid glands to overwork and produce high amounts of parathyroid hormone to maintain or restore the calcium level to the standard range. Secondary hyperparathyroidism is the result of another condition that lowers the blood calcium, which then affects the gland's function. Hyperparathyroidism may occur because of primary hyperparathyroidism or secondary hyperparathyroidism. Which one depends on the underlying problem. These high hormone levels can be the body responding appropriately to keep the calcium in the standard range, or they may be inappropriately elevating the calcium in the blood. Sometimes one or more of the parathyroid glands produce high amounts of parathyroid hormone. Phosphorus, another mineral, works along with calcium in these areas. But calcium also aids in the transmission of signals in nerve cells.



Hyperparathyroidism is caused by factors that increase the production of parathyroid hormone.
