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

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.

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 …

May 14, 2025 · TSH, meaning thyroid stimulating hormone, is an important hormone produced by the pituitary gland. The function of TSH is to let the thyroid know whether it has to produce …

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 …

Produced by the pituitary gland, TSH controls the production of thyroid hormones T3 and T4, which are vital for maintaining numerous bodily processes. Monitoring TSH levels through a …