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Doctor insights on: What Does Low Tsh Mean

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What does low TSH mean?

What does low TSH mean?

ThyroidStimulatingHo: Thyroid stimulating hormone. It is secreted by pituitary gland to make your thyroid gland produce thyroid hormone. ...Read more

Dr. Quang Nguyen
893 doctors shared insights

Thyroid Stimulating Hormone (Definition)

A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine ...Read more


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What does a low TSH level mean?

What does a low TSH level mean?

Need to look at T3 (liothyronine): And free t4. Low tsh, depending on the sensitivity of the assay, indicates thyroid hyper-function. However, the suspected hyperthyroidism needs to be confirmed with high levels of T3 (liothyronine) and free t4. All lab tests need to be evaluated in the clinical context and it would be prudent to take up the issue with your doctor. ...Read more

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What does it mean if I have low TSH and low freet4? Both .6

What does it mean if I have low TSH and low freet4? Both .6

It depends: Are you taking thyroid hormone? If yes, it changes how the tests are interpreted. If you are not on thyroid medication, a low free T4 and low TSH can indicate a pituitary disorder. ...Read more

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What does it mean when you have a low TSH but you also have a low t4?

What does it mean when you have a low TSH but you also have a low t4?

Thyroid labs: Hi. See an endocrinologist. Make sure it's a free T4 (not a TOTAL T4). If you have low TSH and a low free T4, that's compatible with pituitary disease causing hypothyroidism (so called "secondary hypothyroidism"). IF you have that (not saying you do), you need to be checked for pituitary problems and other pituitary deficiencies (adrenal, most promptly); If u have secondary hypothy, CHECK ADRENALS ...Read more

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What is meant by low TSH high free t4?

What is meant by low TSH high free t4?

Hyperthyroidism: A low TSH and high T4 is an indication of over-active thyroid (hyperthyroidism). This should be evaluated further for any potential cause and discuss treatment options with your physician. Referral to an endocrinologist may be necessary. ...Read more

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What does borderline low TSH and T3 (liothyronine) mean?

What does borderline low TSH and T3 (liothyronine) mean?

Nothing usually: Borderline is still within the normal range. Ask the physician who ordered the test why he got both and what his/her interpretation is. ...Read more

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What does low TSH 0.2 with normal free T4 mean?What is its treatment and does it need to be taken all life long?

Likely normal: Your TSH may be slightly low and may be normal for you. Do you have any symptoms? It is generally not a good idea to treat lab values. All lab results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. It is likely that you need no treatment, however, it would be prudent to follow your doctor's advice for follow up tests. ...Read more

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What does it mean if my T3 (liothyronine) is low? TSH and T4 totals are normal.

What does it mean if my T3 (liothyronine) is low? TSH and T4 totals are normal.

Nothing: first how low is low. generally T3 (liothyronine) alone does not mean anything. specially with normal TSH, and T4 that mean your thyroid is functioning well. check with your doctor. ...Read more

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Could a low TSH but normal Free T4 mean a Pituitary problem? Or would that be more indicative of the start of Hypothyroidism?

Could a low TSH but normal Free T4 mean a Pituitary problem?  Or would that be more indicative of the start of Hypothyroidism?

Sounds normal: Your description is consistent with normal thyroid function, but if you are concerned, you could provide exact numbers for us to review. ...Read more