Thyroid-stimulating hormone (TSH) triggers your thyroid to release its hormones. High TSH levels usually indicate hypothyroidism and low levels, hyperthyroidism.

Apr 22, 2025 · This article describes the TSH test and its results. We also discuss what high and low TSH levels indicate and available treatments.

Dec 10, 2025 · Learn how TSH levels indicate thyroid health. High TSH suggests an underactive thyroid; low levels point to overactivity.

Nov 22, 2025 · What Is a TSH (Thyroid Stimulating Hormone) Test? A blood test can check the amount of hormones that your thyroid is making. Many factors can affect these levels. (Photo …

TSH stands for thyroid stimulating hormone. Another name for it is thyrotropin. A TSH test is a blood test that measures this hormone. A TSH level that is too high or too low may be a sign of …

Oct 30, 2025 · A doctor can test your TSH levels with a blood test to diagnose thyroid disease. Normal TSH levels range from 0.4-4.0 mUI/mL, which indicates proper thyroid function.

TSH (with a half-life of about an hour) stimulates the thyroid gland to secrete the hormone thyroxine (T 4), which has only a slight effect on metabolism. T 4 is converted to …

3 days ago · Learn what TSH is, symptoms of high TSH, normal ranges, health risks, when treatment is needed, and how TSH relates to thyroid disorders.

Doctors use this test to diagnose problems affecting the thyroid. Your thyroid is a butterfly-shaped gland near the base of your throat above your collarbones. The thyroid makes 2 hormones, T3 …

Mar 24, 2022 · Unusually low TSH levels may indicate an overactive thyroid, with symptoms like weight loss and rapid heart rate. Unusually high TSH levels often suggest an underactive …