The causes of parathyroid diseases vary depending on the type of illness. Specifically for hyperparathyroidism, causes are primarily examined under two categories:
* Primary Hyperparathyroidism: Arises from a problem within the parathyroid gland itself (e.g., adenoma, hyperplasia).
* Secondary Hyperparathyroidism: Occurs as a result of another disease affecting the parathyroid glands (e.g., chronic kidney failure).