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.

Q: I had a thyroidectomy a few years ago, and have been taking levothyroxine daily since then. My dose has been stable. While ...

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.

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 ...

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 ...

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 ...

Studies published during the past decade have enabled researchers to gain new insights into the diagnosis, physiology and treatment of thyroid disease during pregnancy. The previously recommended TSH ...