What do high PTH levels mean?

Primary hyperparathyroidism: This is a condition in which the parathyroid glands produce too much PTH. The most common cause of primary hyperparathyroidism is a benign tumor of the parathyroid gland. Symptoms of primary hyperparathyroidism can include:

- Kidney stones

-Weak bones (osteoporosis)

- Bone pain

-Muscle weakness

-Nausea

-Vomiting

-Constipation

-Frequent urination

-Increased thirst

Secondary hyperparathyroidism: This is a condition in which the parathyroid glands produce too much PTH in response to low levels of calcium or high levels of phosphorus in the blood. Common causes of secondary hyperparathyroidism include

-Kidney disease

-Vitamin D deficiency

-Certain types of cancer

Symptoms of secondary hyperparathyroidism are similar to those of primary hyperparathyroidism but may also include:

-Itching

-Dry skin

-Brittle nails

-Weight loss

-Increased appetite