Doctor insights on:
Causes Of False High Tsh Levels
Not much: Any lab can have a temporary problems doing any test accurately. That is why an abnormal level should always be repeated to verify it. There are temporary causes for high TSH (resolving subacute thyroiditis), so that a 2nd TSH level done a few weeks after an abnormal one, could be normal. Subclinical hypothyroidism will have a high TSH with other thyroid levels normal, no symptoms. ...Read more
Low thyroid function: If you have a high TSH, it may be that you have hypothyroidism, which is very common & responds well to very cheap medication to correct. Low thyroid function can cause depression! So if you have thyroid hormone deficiency get treated, your depression will improve faster, even if on depression meds & the meds may not work if your thyroid hormone level is very low. See doc and get further tests. ...Read moreSee 1 more doctor answer
Yes: Hypothyroidism can be primary - caused by a weak thyroid gland or secondary to other hormonal problems, like a pituitary problem. Or your thyroid can become dysfunctional secondary to high insulin, estrogen or cortisol. If you have functional hypothyroidism, this problem can go undetected by routine screening tests. More extensive testing can often reveal abonormalities. This is very common. ...Read moreSee 1 more doctor answer
What can cause high TSH level after several years of Synthroid for post ablative (graves) hypothroidism?
Can a miscarriage cause missed periods, high TSH levels & infertility. Diagnosed hypo 6m afte mc. Only had 6 periods since 07/12 mc 6.18.12.
Depends: A miscarriage can at time delay ovulation and cause the subsequent cycle to become irregular but it should not cause the periods to become irregular nor it has any affect on rising of the tsh.A miscarriage can indirectly affect fertility due to tubal damage or damage to the endometrial lining . Hypothyroidism however if not treated can cause irregular periods, miscarriage and infertility. ...Read more
I have a high TSH level 9.5 and normal T4 and t3. Headaches and light headed. Also can this cause diabeties ?
Above 4.5: In most labs, a value above 4.5 is high. However, symptoms related to low thyroid correlate much better with free T4 levels, rather than tsh. There are many people with elevated tsh, normal free t4, who feel perfectly normal (subclinical hypothyroidism). Persistently high TSH levels is indicative of a failing thyroid. ...Read more
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