Hyperthyroidism: Can it cause bone loss?

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Hyperthyroidism: Can it cause bone loss?

Question

Can hyperthyroidism cause bone loss?

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Answer

Yes, hyperthyroidism can lead to bone loss (osteoporosis). The strength of your bones depends, in part, on the amount of calcium and other minerals they contain. Hyperthyroidism — a condition in which your thyroid produces too much thyroid hormone — interferes with your body's ability to incorporate calcium into your bones.

If you have osteoporosis, your doctor will likely test you for hyperthyroidism. Occasionally, the signs and symptoms of hyperthyroidism are very mild and may go unrecognized. But even mild hyperthyroidism can have adverse effects on bones.

If you take thyroid hormone replacement, it's important to have regular exams and blood tests to make sure your dose continues to be correct. Even a mild excess of thyroid hormone replacement can lead to bone loss if continued for several years.

Last Updated: 03/16/2006
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