Subclinical hyperthyroidism means that a person has low or undetectable levels of thyroid-stimulating hormone (TSH) with normal levels of free thyroid hormones. It usually does not cause symptoms. The ...

Accurately diagnosing thyroid function is critical to avoid harms of unnecessary treatment. This study found that age-, sex-, and race-specific reference intervals reclassified nearly half of patients ...

The thyroid gland may be small, but its impact on overall health is enormous. This butterfly-shaped gland in your neck regulates your body's metabolism, energy levels, and hormonal balance.