{"id":9919,"date":"2025-06-19T16:19:51","date_gmt":"2025-06-19T13:19:51","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=9919"},"modified":"2026-04-20T18:53:41","modified_gmt":"2026-04-20T15:53:41","slug":"a-blood-test-for-ttg-which-is-a-hormone-that-shows-how-the-thyroid-gland-is-working","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/a-blood-test-for-ttg-which-is-a-hormone-that-shows-how-the-thyroid-gland-is-working\/","title":{"rendered":"TSH blood test: how one hormone shows how the thyroid gland is working"},"content":{"rendered":"
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\n 4.9\/5 - (680 votes) <\/div>\n <\/div>\n

What is TSH and why is it clinically important?<\/h2>\n

Thyroid-stimulating hormone<\/a> (TSH, or TSH \u2014 thyroid-stimulating hormone)<\/strong> \u2014 is a hormone that is synthesized in the anterior pituitary gland. Its main function is thyroid gland regulation<\/strong>: TSH "stimulates" the production of thyroid hormones T3 (triiodothyronine)<\/strong> \u0456 T4<\/a> (thyroxine)<\/strong>.<\/p>\n

The hormonal balance of this axis works on the principle of feedback:<\/p>\n