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High Blood Calcium (Hypercalcemia)

People with high blood calcium, also called hypercalcemia, have above-normal levels of calcium in their blood.

Calcium is a mineral found mostly in your bones, where it builds and maintains bone strength. A small amount of calcium is also found in muscle and blood cells, where it plays several important roles:

• helps muscles contract
• helps nerves and the brain work properly
• helps regulate your heart rhythm and blood pressure

High blood calcium often does not cause any health problems. But over time, some causes of high blood calcium can lead to osteoporosis (thinning of the bones) and kidney stones. Very high blood calcium can cause more serious problems, including kidney failure, heart rhythm abnormalities, mental confusion, and even coma.

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The Hormone Foundation

Dr. Lysette Iglesias M.D.

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