Doctor insights on:
Dangers Of Low Tsh
I have hypothyroid from 6 months and recently when tested got t3-1.25, t4-8.54, tsh-0.018. Is it dangerous to hav such low TSH and do it affect fertilit?
It depends: I assume you are taking thyroid hormone for your diagnosis of hypothyroidism. The low TSH tells us that you are taking too much thyroid hormone. However, the normal T4 and T3 (liothyronine) levels tell us that you need only a slightly lower dose. Any time the thyroid level is off, it can affect fertility, so you want to have it normal. ...Read more
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
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
Low TSH unlikely: Thyroid cancer usually does not cause a low TSH (unless you are taking thyroid hormone). Most thyroid cancers do not function as well as normal thyroid tissue. Elevated thyroglobulin is a nonspecific finding, seen in most disorders of the thyroid. It can serve as a tumor marker for recurrent thyroid cancer as long as the thyroid has been completely removed. High tg has nothing to do with tsh. ...Read more
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
Stress can increase tsh, but how high cortisol causes low TSH where as stress causes high cortisol production.?
Cortisol: This is a very complex system. In very basic terms cortisol is produced in response to stress and feeds back inhibiting production of itself (inhibiting crh and acth). Cortisol also inhibits TSH production (as well as growth hormone, estrogen, testosterone and lh production). Thus limiting the response to stress. It is though in chronic stress this feedback mechanism breaks down. ...Read more
27 yrs old. This years blood work showed: Low TSH, and total T-3 and free T-4 are both high. Last year's test were fine. What could thus indicate?
Mild hyperthyroidism: Unless you are taking thyroid medication (and taking too much) this could mean mild hyperthyroidism. If your doc measured TSH, FT3 and FT4, (s)he must have suspected something. Most likely cause of hyperthyroidism in a 27 yo woman is Graves disease or one of several forms of thyroiditis. You may need to see an Endocrinologist. ...Read more
I have a low TSH due to probably excess eltroxin have been hypothryroid for 25 years. Have started getting lots of skipeed beats tsh.05?
See your doctor: This problem can only be solved by seeing your doctor and being evaluated face-to-face. After a thorough examination, your doctor should be able to tell you what's wrong and what to do about it. ...Read more
How low?: If these were taken during a time that you were emotionally distraught, and they are not strikingly removed from the reference range (which is set so that several percent of healthies fall outside), your physician will repeat them when your life gets better. If way-low, pituitary disease is a concern. ...Read more
Unrelated: Heel pain is not a symptom of thyroid disease. When you say low TSH, do you mean in the range of 0.1-0.4 or less than 0.1? A slightly low TSH of 0.1 to 0.4 is usually a benign normal variation whereas a TSH of less than 0.1 could be a sign of an overactive thyroid which would require further testing and possibly treatment. ...Read more
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
What does a low TSH score of. 08 indicate? I have been takin levothyroxin for 9 years and my last blood test shows a TSH score of. 08.
Too much levothyrox?: That result is below the usual target of 0.5-5, indicating that there may be too much T4 (levothyrox) in your system. 1. the doctor who prescribes your T4 should determine whether a dose reduction is needed. 2. if you are feeling well, the first thing to do may be to repeat the test. 3. after 9 years, it is possible that your T4 requirement has indeed gone down and your dose should be lowered. ...Read more
Can you stop taking Synthroid (thyroxine) after (5-6)years of taking it? Borderline -low TSH is why it was prescribed. Dose. 050mcg.
Synthroid (thyroxine): You must mean a borderline high TSH for an underactive thyroid. Anyhow, the thyroid does not revert back to its normal level on its own, it ages with us and needs frequent monitoring, I would suggest not to stop it, but this is something you need to discuss with your doctor who knows you best. ...Read more
Struggling with very low TSH 0 01 for 1 yr. Compliant with levo although doc keeps lowering it. No supps etc that would cause malabsorption. Ugh!
Over replaced: As your TSH is low and you're having symptoms of hyperthyroid (i presume), the answer is simply that your dose is too high. Dropping it carefully, as your doctor is doing, should work to bring your levels back in to control. (low TSH = high thyroid). ...Read more
Yes, transiently: Hashimoto's thyroiditis can go through a phase of thyroid hyperactivity early in the course of disease and that would be associated with low TSH. Sooner or later enough thyroid is destroyed that thyroid functions declines and TSH rises. ...Read more
No: Not if those values are within the lab's stated and assayed normals, and if your not on any medication to lower active thyroid hormones. ...Read more
Could a successful 20 year old hodgkins chemotherapy recovery cause hypothyroid with a low TSH production?
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
Can a low TSH completely prevent pregnancy? Not extremely low but median low. Can the medication alap have an effect? Thanks in advance
Thyroid problem: Decrease TSH may be a result of primary disease of pituitary gland causing secondary hypothyroidism or it may be a consequence of negative feed back of elevated thyroid hormone (T4) in thyrotoxicosis. Both may (not always) cause infertility or menstrual cycle abnormality. After treatment, hormone levels return to normal and pregnancy is achieved more easily. ...Read more
Need further eval: The low TSH needs to be addressed as it can cause problems for you. In the presence of thyroid nodules, you will need a thyroid uptake and scan to make sure the nodules are not producing too much thyroid hormones. Treatment then would be antithyroid drugs, radioactive iodine, or surgery. You should not be doing nothing with a low tsh. ...Read more