Thyroid Stimulating
Hormone (TSH)

Thyroid stimulating hormone or TSH is released by the pituitary gland. TSH stimulates the thyroid gland to produce two vital hormones, thyroxine (T4) and triiodothyronine (T3). T3 and T4 hormones are crucial for regulating metabolism, heart and digestive functions, muscle control, brain development, and bone maintenance. In essence, TSH, T4, and T3 play pivotal roles in maintaining overall body functions and well-being. Insufficient thyroid hormones in the bloodstream lead to a slowdown in various bodily functions (hypothyroidism), while an excess of these hormones accelerates many physiological processes (hyperthyroidism). Your healthcare provider may order this test to see how well your thyroid gland is working in case you experience symptoms related to a thyroid hormone imbalance.