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Doctor insights on: Causes Of Varying Tsh Levels

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What would cause TSH at 8 go down to a normal level a week and a half later withouth meds?

What would cause TSH at 8 go down to a normal level a week and a half later withouth meds?

Error in testing: It is possible that one of the test results is in error. It would be prudent to discuss it with the doctor who ordered the tests. ...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 causes TSH level to go up and down?

What causes TSH level to go up and down?

Variations: In your level of thyroid hormone. Tsh is secreted in spurts, and sometimes the lab test can detect a peak one time and a valley the next, but it's usually a fairly reliable indicator. ...Read more

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What causes TSH level to go up and down without medication?

Thyroid inflammation: Can cause variable TSH results. Tsh tests are very sensitive but often not real reproducible. Levels vary by time of day. Tsh is secreted in spurts and may vary depending upon when it's drawn. Plus some labs are better and more reliable than others. ...Read more

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Could rhodiola cause low TSH levels?

Could rhodiola cause low TSH levels?

Unlikely but...: Rhodiola is known to improve thyroid function and thus might be expected to reduce TSH levels somewhat (though more research on this is needed). However, a low TSH tends to be a sign of hyperthyroidism and, as far as i know, rhodiola is not known to stimulate the thyroid to the point of hyperthyroidism. ...Read more

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Sudden increase in TSH levels from 2.5 six months ago to 7.8 now. No meds or family history. No prior levels above 2.5 ever. Feel ok and ttc. Cause?

If your tsh: Is that elevated upon repeat morning testing, then you have early hypothyroidism, and need brand name T4 replacement until your levels are normalized. Check w/your doctor. ...Read more

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Could a TSH level of 5.6 be enough to cause fertility issues? Would fixing it boost my fertility ?

Could a TSH level of 5.6 be enough to cause fertility issues? Would fixing it boost my fertility ?

Yes: The short answer is "yes". Hypothyroidism (elevated tsh) can affect your menstrual cycles and how you ovulate, among other health issues. Moving forward, maintaining your TSH level at, or below, 2.5 while your pregnant also has better outcomes for baby. ...Read more