Low TSH levels may suggest hyperthyroidism, which causes symptoms like weight loss and increased appetite. High TSH levels can be a sign of hypothyroidism, with symptoms like weight gain and fatigue.

A randomized crossover trial evaluated the efficacy of different l-thyroxine dosing strategies and different target thyroid-stimulating hormone (TSH) ranges in patients with treated hypothyroidism.

Thyroid disorders, which affect about 20 million Americans, can be diagnosed with a TSH test, which measures levels of what is called the thyroid stimulating hormone (TSH) in your blood. TSH is a ...

High TSH levels can mean you have an underactive thyroid or a pituitary gland tumor. Low TSH levels can mean you have an overactive thyroid or issues with the pituitary gland. TSH levels are first ...

Please provide your email address to receive an email when new articles are posted on . Polygenic score was a stronger predictor of TSH levels than free T 4 in two study cohorts. Using polygenic score ...

Dear Dr. Roach • I’m a 69-year-old woman with hypothyroidism. Although my TSH score is in the high-normal range, a new doctor recently increased my dosage of levothyroxine just slightly because of ...

New research suggests that a slightly underactive thyroid may affect a women's ability to become pregnant -- even when the gland is functioning at the low end of the normal range. New research ...