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. When blood-calcium levels are too high, the parathyroid glands produce less parathyroid hormone.Ĭalcium is best known for its role in keeping your teeth and bones healthy.This hormone raises calcium levels by releasing calcium from your bones, increasing the amount of calcium absorbed from your small intestine and decreasing the amount of calcium lost in urine. When calcium levels in your blood fall too low, your parathyroid glands release enough parathyroid hormone to restore the balance.Vitamin D also is involved in controlling the amount of calcium in your blood. This is similar to how a thermostat controls a heating system to maintain a constant air temperature.
The parathyroid glands keep proper levels of both calcium and phosphorus in your body by turning the release of parathyroid hormone off or on. Hyperparathyroidism is caused by factors that increase the production of parathyroid hormone.
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