Dec 10, 2025 · High TSH levels usually mean the thyroid is underactive, which is called hypothyroidism. TSH levels can change due to factors like age, sex, and pregnancy. TSH …

Thyroid-stimulating hormone (TSH) triggers your thyroid to release its hormones, which mainly impact your body’s metabolism. High TSH levels usually indicate hypothyroidism, and low TSH …

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.

Sep 5, 2023 · Tests to evaluate thyroid function include the following: TSH TESTS The best way to initially test thyroid function is to measure the TSH level in a blood sample. Changes in TSH …

Oct 30, 2025 · Normal TSH levels range from 0.4-4.0 mUI/mL, which indicates proper thyroid function. You can treat abnormal TSH levels based on the cause of the hormone imbalance.

Nov 22, 2025 · TSH stands for “thyroid stimulating hormone, ” and the test measures how much of this hormone is in your blood. TSH is produced by the pituitary gland in your brain, which …

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 …

6 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.

Mar 24, 2022 · What is a normal TSH level? Doctors measure TSH levels in ranges. In general, the normal reference range for TSH levels is 0.35 to 4.5 mIU/l of blood. A TSH reading in this …

Oct 3, 2025 · High TSH levels mean your thyroid is underperforming, while low levels mean you’re producing too much. Your pituitary gland produces thyroid-stimulating hormones (TSH), which …