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Medically reviewed by Last updated on May 6, 2024.

What is hyperparathyroidism?

Hyperparathyroidism is a condition that causes your parathyroid glands to make too much parathyroid hormone (PTH). The parathyroid glands are 4 small glands located near the thyroid gland in your neck. PTH keeps the level of calcium balanced in your blood. High levels of PTH causes too much calcium to build up in your blood. High calcium levels can cause health problems such as osteoporosis (weak, brittle bones), high blood pressure, and kidney stones.

Thyroid and Parathyroid Glands

What causes hyperparathyroidism?

Hyperparathyroidism may be caused by a benign (not cancerous) tumor on the parathyroid glands called an adenoma. Hyperparathyroidism may also be caused by enlarged parathyroid glands. The adenoma or enlarged glands can cause extra PTH to be produced. Hyperparathyroidism may also be caused by radiation to the neck or certain medicines, such as thiazide diuretics. In rare cases, hyperparathyroidism may be caused by cancer of the parathyroid gland.

What are the signs and symptoms of hyperparathyroidism?

You may have no signs or symptoms or you may have any of the following:

How is hyperparathyroidism diagnosed?

Your healthcare provider will ask about your symptoms. He or she will also order blood tests to check your calcium and parathyroid levels. You may need other tests to check for health problems caused by hyperparathyroidism.

How is hyperparathyroidism treated?

You may not need any treatment if you do not have symptoms. Your healthcare provider may monitor your condition through regular visits and blood tests. You may need medicines to control the amount of PTH your parathyroid glands make. You may also need medicine to keep your bones strong. Surgery may be done to remove an adenoma or your parathyroid glands.

How can I manage hyperparathyroidism?

You may need to do the following if you will not have surgery to treat your hyperparathyroidism.

When should I seek immediate care?

When should I contact my healthcare provider?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

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