Causes & Risk Factors Of Osteitis Fibrosa Cystica

Secondary Hyperparathyroidism

Some patients experience secondary hyperparathyroidism, which is when the parathyroid glands over-produce the parathyroid hormone due to hypocalcemia and hyperplasia of the glands. Patients with chronic kidney failure show more evidence of this. When the kidneys are failing, vitamin D is not turned to its active form and phosphate is not excreted sufficiently, causing calcium phosphate to form which removes calcium from the blood circulation. Symptoms include bone and joint pain, and the patient’s limbs may become deformed. If secondary hyperparathyroidism is brought on by hypocalcemia, then fixing the cause of hypocalcemia will also resolve it.

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