Medically reviewed by Danielle Weiss, MD Your thyroid-stimulating hormone (TSH) levels are important for many bodily ...

Low TSH. Your test result could also show lower-than-normal levels of TSH and an overactive thyroid. This could be caused by: Graves’ disease (your body’s immune system attacks the thyroid) ...

A thyroid-stimulating hormone (TSH) test measures TSH levels in the blood, which can help doctors diagnose thyroid conditions.

A thyroid stimulating hormone (TSH) test measures the amount of TSH in the blood. A blood test can measure TSH and help a doctor diagnose a thyroid condition such as hypothyroidism or ...

Medically reviewed by Kelly Wood, MD Normal thyroid-stimulating hormone (TSH) levels generally fall between 0.5 and 5.0 milliunits per liter (mU/L). If your TSH level is higher than 5.0 mU/L it ...

Your thyroid stimulating hormone (TSH) level indicates how well your thyroid is functioning. We'll tell you what normal, low, and high levels are and what they could mean.

High TSH levels usually indicate that the thyroid is underactive and needs more stimulation in order to work. But, some people with hypothyroidism have normal TSH levels.

The TSH value could be elevated for several reasons: Fluctuations depending on the time of day. At night and early in the morning, the TSH value is much higher than in the afternoon.

This Review highlights the interindividual and intraindividual variability of TSH levels and discusses the current controversy that surrounds the appropriateness of reference ranges defined on the ...

Recombinant human TSH (rhTSH) is now available for use in patients with thyroid cancer. As discussed in this article, it is used as preparation before radioiodine-mediated thyroid-remnant ablation ...