How to Pronounce Thyroid Stimulating Hormone

Say it like this: THY-royd STIM-yoo-lay-ting HOR-mohn. Start with 'THY' (rhymes with 'my'), then 'royd' (sounds like 'roid'). Next comes 'STIM' (like 'stimulate'), then 'yoo-lay-ting' (with the stress on STIM). Finally, 'HOR-mohn' (where HOR rhymes with 'for'). The strongest stress is on the first syllable: THY.

The abbreviation is TSH, which you say by spelling out the letters: T-S-H. You'll hear doctors and lab results refer to it as 'TSH' much more often than the full name, so it's helpful to know both ways to say it.

The whole phrase has 9 syllables when you say it slowly: thy-roid (2) stim-u-la-ting (4) hor-mone (2). Breaking it into chunks like this makes it easier to remember and pronounce correctly.

You stress the very first syllable: THY-royd STIM-yoo-lay-ting HOR-mohn. A common mistake is putting the stress on 'STIM' instead, but 'THY' should be the loudest and longest part when you say the word.

'Thyroid' comes from Greek words meaning 'shield-shaped,' because the thyroid gland looks like a shield in your neck. 'Stimulating' means 'triggering' or 'causing action.' 'Hormone' comes from Greek meaning 'to set in motion.' Together, the phrase means a messenger chemical that tells the thyroid gland to become active.

In everyday language, you could call it 'the hormone that wakes up the thyroid' or 'the thyroid wake-up signal.' It's a messenger that your body sends to tell the thyroid gland to do its job, which is why it's called 'stimulating.'

You'll see 'thyroid' in words like 'hypothyroidism' (under-active thyroid), 'hyperthyroidism' (overactive thyroid), and 'thyroiditis' (inflammation of the thyroid). All of these words have 'thyroid' in them because they all relate to that shield-shaped gland in your neck.

Yes, they mean the exact same thing and can be used interchangeably. You might hear: 'The doctor ordered a TSH test' or 'The doctor ordered a Thyroid Stimulating Hormone test'—both sentences mean the same thing. Medical professionals often use the abbreviation because it's faster to say.