Thyroid Stimulating Hormone (TSH)

Last updated: June 12, 2017

What Does Thyroid Stimulating Hormone (TSH) Mean?

Thyroid stimulating hormone (TSH) is a hormone produced by the pituitary gland that in turn controls the production of the other thyroid hormones. The thyroid hormones control metabolism in the cells and play a role in the operation of several major body functions. The thyroid stimulating hormone is also called thyrotropin.


WorkplaceTesting Explains Thyroid Stimulating Hormone (TSH)

The thyroid stimulating hormone (TSH) is part of a hormone regulation system within the body that controls the production of the thyroid hormones, T4 and T3. TSH attaches to receptor cells in the thyroid, triggering the production of the thyroid hormones. Once these hormones are detected in the blood stream at sufficient levels, the pituitary gland stops production of TSH. The hypothalamus controls resumption of TSH production by releasing a hormone called thyrotropin-releasing hormone that stimulates the production of TSH by the pituitary. Too much or too little TSH can lead to either the under or over production of thyroid hormones and resulting health problems such as fatigue, goiter, weight fluctuation, vision problems, unstable heart rate and heat regulation, and other chronic conditions.




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