![]() Here is another problem: the TSH test has a wide reference range. So what should be a high TSH on your test now looks normal, and your doctor says “Great! Your thyroid is normal.” “The standard TSH range could be missing as many as 75% of people with low thyroid.” ![]() ![]() It’s kind of like your pituitary is wearing earplugs and it can’t hear the hypothalamus telling it to give your thyroid a nudge. Unfortunately, a lot of chronic problems - like high cortisol from stress - can cause overall pituitary suppression. Here’s the issue: the TSH relies on a perfectly functioning pituitary gland. It’s one of those amazing feedback loops in the body, and it works great - until it doesn’t. And just like its full name suggests - Thyroid Stimulating Hormone - TSH works to kick start your thyroid into making additional thyroxine (T4). Well I’m going to tell you why, in too many cases, the TSH test is unreliable - in which case you could indeed be hypothyroid, but it’s going undetected.Īs a brief reminder, your pituitary pumps out TSH when your thyroid hormones are too low. Maybe you’ve even been tested more than once - and probably any time you’ve been tested, it’s been with a TSH test.ĭid your doctor ever tell you that your thyroid was normal based on TSH test results, but you continued to feel lousy? Low thyroid function is so common among women that you’ve probably been tested for it when you’ve had symptoms like fatigue, weight gain or hair loss. Mary James here, with Women’s Health Network. Mary James explains why the standard thyroid test, TSH, often fails to accurately diagnose hypothyroidism - and she tells you about the two tests that can help reveal low thyroid function, so you can finally restore your thyroid health and start feeling the way you want to feel. You’re having symptoms of low thyroid function - fatigue, weight gain, hair loss, brain fog and more - but your doctor insists that your thyroid test results are within “normal range,” so your thyroid is fine.Īn estimated one in five women aged 60 and older has some form of thyroid dysfunction, yet a huge number of these women will go undiagnosed by their doctors. ![]()
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