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Doctor insights on: Which Thyroid Hormone Causes Myxedema

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Can low thyroid hormone levels cause menopause?

Can low thyroid hormone levels cause menopause?

Not really: But hormones all do an intricate dance with each other and so thyroid dysfunction can definitely alter female hormone function and cause many symptoms which mimic menopause. Get your levels checked! ...Read more

Dr. Janice Alexander
1 doctor shared a insight

Hormone (Definition)

A hormone (from greek ὁρμή, "impetus") is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Only a little amount of hormone is required to alter cell metabolism. In essence, it is a chemical messenger that transports a signal from ...Read more


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Can thyroid cancer cause hyperthyroidism?

Can thyroid cancer cause hyperthyroidism?

Unusual: Most thyroid cancers do not produce excess thyroid hormone. Very rarely, a single nodule can produce excess hormone and be cancerous, but those are very unusual. ...Read more

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Why hyperthyroid can cause gynecomastia? What's the connection thyroid hormone and estrogen, testosterone?

Why hyperthyroid can cause gynecomastia? What's the connection thyroid hormone and estrogen, testosterone?

Complex interaction: Gynecomastia can occur in hyperthyroidism due to an induced increase in peripheral aromatase activity leading to an increase in circulating estrogen levels, and thus decreased testosterone levels. Most of the estrogen in men is made from the peripheral conversion of testosterone and other androgens to estrogens. Other mechanisms are probably at play as well. ...Read more

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Why does thyroid hormone cause exophthalmos?

Why does thyroid hormone cause exophthalmos?

Exophthalmos: It does not. Graves disease which is associated with prominent eyes causes antibodies to inflame the surrounding tissues around the eyes. Graves also causes antibodies to stimulate the thyroid causing hyperthyroidism. It is not the high thyroid hormone levels that cause eye prominence. ...Read more

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Can thyroid nodules cause hypothyroidism?

Can thyroid nodules cause hypothyroidism?

Nodules hypothyroid: The most common cause of low thyroid is autoimmune Hashimoto's thyroiditis. The lumps in the thyroid can and do exist with the Hashimoto's but don't cause the underlying problem. It is possible that a thyroid gland can become so full of thyroid nodules that it becomes unfunctional, but this is unusual. ...Read more

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Why would autoimmune disorders make the thyroid gland produce excessive thyroxine?

Why would autoimmune disorders make the thyroid gland produce excessive thyroxine?

Antibodies: Some auto-antibodies sit on the thyroid cells and make them over produce thyroid hormone. Other autoantibodies can cause the exact opposite. ...Read more

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What hormone imbalances can cause excessive face/head sweating? I have underactive thyroid, kidney disease, & low cortisol levels. Can these diseases?

What hormone imbalances can cause excessive face/head sweating? I have underactive thyroid, kidney disease, & low cortisol levels. Can these diseases?

Any of them: Sweating from overactie thyroid. It could also be from hormonal changes with estrogen or testosterone, and with kidney disease you could have an imbalance of those. ...Read more

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Can thyroid dysfunction lead to thyroid cancer?

Can thyroid dysfunction lead to thyroid cancer?

No: Thyroid cancer is fairly common, the most common endocrine malignancy, and therefore, it can be seen in the setting of thyroid dysfunction (most commonly, hashimoto thyroiditis), but thyroid dysfunction has never been shown, to my knowledge, to cause thyroid cancer. ...Read more

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What hormones from the hypothalamus, pituitary gland, and possibly thyroid cause calcitonin to be released?

What hormones from the hypothalamus, pituitary gland, and possibly thyroid cause calcitonin to be released?

Calcitonin: Calcitonin is not affected significantly by any of these. Calcitonin does not do much of anything in humans. When someone has a thyroidectomy, we don't give back calcitonin. ...Read more

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Why does thyroid replacement therapy in hypoadrenalism cause adrenal crisis?

Why does thyroid replacement therapy in hypoadrenalism cause adrenal crisis?

Great question!: Even people with adrenal problems often make a little bit of cortisol. This little bit can be enough to keep them from getting very sick. In hypothyroidism the body's need for cortisol goes down and the little bit you make lasts longer. So if a person has both thyroid and adrenal disease, treating the thyroid without treating the adrenal problem first causes the little cortisol to run out quicker. ...Read more

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Are hormones produced by thyroid gland tropic hormones?

Are hormones produced by thyroid gland tropic hormones?

Hormones: A tropic hormone is a hormone secreted by one gland and then stimulates another gland; for example, the pituitary makes TSH, which targets the thyroid and causes the thyroid to make T4 and T3 (liothyronine). The thyroid hormones (T4, T3 (liothyronine)) target other organs (heart, CNS, GI, etc), but not really other glands, so are not really tropic hormones. ...Read more

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Could thyroid eye disease cure itself once hormone levels are balanced?

Could thyroid eye disease cure itself once hormone levels are balanced?

Graves eye disease: Graves eye disease tends to run a separate course from the hyperthyroidism. Fixing the hyperthyroidism will improve the lid lag, which gives the appearance of a "stare". But the proptosis ("bugging out"), inflammation, swelling, double vision, may not improve. You should see a specialist, starting with an endocrinologist, to see if you should be on steroids, have surgery, or other treatments. ...Read more

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What pituitary hormones cause the adrenal gland to produce mineralocorticoids, glucocorticoids, and androgens and estrogens including pregnenolone?

What pituitary hormones cause the adrenal gland to produce mineralocorticoids, glucocorticoids, and androgens and estrogens including pregnenolone?

Pituitary & steroids: Hi. Pituitary ACTH regulates adrenal cortisol production; it also acutely stimulates aldosterone, but is not the principle regulator. LH principally stimulates gonadal steroid hormone production (both genders make androgens & estrogens, but in opposite dominance). Pregnenolone is early in the steroidogenic pathway in both adrenals and gonads. Good luck! ...Read more

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Why high TSH can cause hyperplasia thyroid cell?

Why high TSH can cause hyperplasia thyroid cell?

Stimulates Thyroid: As the name implies, TSH = thyroid stimulating hormone so this hormone does stimulate thyrocytes. If you have hypothyroidism (lazy thyroid), the high TSH will keep stimulating the thyroid gland to make more hormones and that is why we treat with thyroid hormone (or in iodine deficient areas iodine therapy may help). ...Read more

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Which foods cause thyroid?

Diets: Diets that are associated with low iodine can cause goiters but that is not typical seen in the industrialized world. ...Read more

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Which is worse: hyperthyroidism or hypothyroidism?

Which is worse: hyperthyroidism or hypothyroidism?

Hyperthyroidism: Hyperthyridism because of symptoms are worse and it requires treatment with drugs which has many side effects and may require radioactive iodine treatment or surgery and after that one has to be treated most of the times for hypothyroidism with Thyroid replacement therapy for life While treatment of Hyp[othyridism is thyroid replacement therapy for life ...Read more

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What is Myxedema? If one got thyroid hormone test results as normal, could they still have Myxedema if symptoms are prominent?

No: Myxedema is due to low thyroid function. If your thyroid tests are normal you do not have myxedema. You need to discuss with your physician other options ...Read more

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Why does thyroid hormone cause exophthalmos?

Exophthalmos: It does not. Graves disease which is associated with prominent eyes causes antibodies to inflame the surrounding tissues around the eyes. Graves also causes antibodies to stimulate the thyroid causing hyperthyroidism. It is not the high thyroid hormone levels that cause eye prominence. ...Read more

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Can a high thyroid hormone levels be a cause of dizziness like vertigo??

Can a high thyroid hormone levels be a cause of dizziness like vertigo??

Yes: get it under control , high thyroid causes heart to race, sweats , weight loss, high bp , bone loss and more. low thyroid causes weight gain, fatigue, hair loss , high cholest. and more , see an endocrinologist if your dr . doesn't get the tsh under control it takes 6 weeks to adjust the medicine, levothyroxine. ...Read more

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Can low thyroid hormone levels cause menopause?

Not really: But hormones all do an intricate dance with each other and so thyroid dysfunction can definitely alter female hormone function and cause many symptoms which mimic menopause. Get your levels checked! ...Read more

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My father is 59 ys old.He lost 28 kg in about 1 yr.Without making any diet..Thyroid hormone and blood sugar both are normal. .What are other invest.Can be done? And what are the possible causes ?

My father is 59 ys old.He lost 28 kg in about 1 yr.Without making any diet..Thyroid hormone and blood sugar both are normal. .What are other invest.Can be done? And what are the possible causes ?

More tests needed: Unexpected weight loss is a serious concern, and needs investigation. It is possible an undiagnosed cancer may be present. Suggest seeing a doctor for additional tests. Among the tests that may be indicated are colonoscopy, ct scan, chest x-ray. ...Read more

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Does thyroid hormone replacement cause rapid heartbeat and shortness of breath?

It can: It can if the dose is too great. Hypothyroidism, the reason for taking thyroid hormone replacement, is a well known cause of arrhythmias and shortness of breath. ...Read more

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Can the estrogen in birth control pills have caused my hyperthyroid to return to normal? I read estrogen blocks the production of thyroid hormone

Can the estrogen in birth control pills have caused my hyperthyroid to return to normal? I read estrogen blocks the production of thyroid hormone

Estrogen and thyroid: Unfortunately the two items can interact/interfere with each other and you need to get to your primary care doctor as soon as possible! It is likely that your doctor will refer you immediately to an Endocrinologist. Please let me know how things go. ...Read more

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What does thyroid hormone suppression involve?

Thyroid suppression: Answer: taking enough thyroid hormone so that your thyroid gland itself stops producing it and pumping it out. There are multiple drugs that can be used: levothyroxine, cytomel, armour thyroid, naturethroid, and thyrolar (thyroxine and liothyronine) (which is currently unavailable in the us). ...Read more

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How is tyrosine related to thyroid hormone?

Thyroid synthesis: Thyroglobulin is a protein in the thyroid. It contains many copies of the amino acid tyrosine. Iodine gets added to the tyrosine, and then this tyrosine gets liberated from the thyroglobulin, released into blood, and this iodinated tyrosine is thyroid hormone. But don't think you can cure hypothyroid by eating tyrosine because the body synthesizes tyrosine quite well. ...Read more

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What is essential for normal synthesis of thyroid hormone?

What is essential for normal synthesis of thyroid hormone?

Thyroid: I would start your search by going online to Yahoo Images and type in Thyroid Hormone. You will find a number of illustrations that should help you. You can also get more details by simply putting in thyroid hormone at the top - mot imaging - and you will find some interesting reading matter. ...Read more

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Doesn't a thyroidectomy reduce thyroid hormone in the body?

Yes: Depending on how much thyroid tissue is removed, patients may need thyroid hormone replacement after surgery. Sometimes only half of the gland is removed, for example if there is concern a nodule is a cancer. These patients may not need thyroid hormone replacement. Also with goiter sometimes some of thyroid gland is left behind on purpose. More recently the entire gland is frequently removed. ...Read more

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Can you tell me how the body maintain thyroid hormone levels?

Can you tell me how the body maintain thyroid hormone levels?

H-P-T axis: Hi. It's an interplay in the hypothalamic-pituitary-thyroid (H-P-T) axis. The hypothalamus secretes thyrotropin-releasing factor (TRF), which stimulates the pituitary to release thyroid-stimulating hormone (TSH), which stimulates the thyroid gland to take up iodine, organify, make, and release thyroid hormones (mostly T4, but a little T3 (liothyronine) too). The thyroid hormones feed back to suppress TRF & TSH. ...Read more

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I would like to know would the thyroid hormone levels be high or low after delivery in a woman?

Either way: There is a very common condition called "post partum thyroiditis". It can cause fluctuations in your thyroid function leading to both high and low hormone levels. Sometimes it requires medication, but sometimes it levels out on its own. You may need to consult with an endocrinologist. ...Read more

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I have complete thyroidectomy 14 years ago I'm currently on thyroid hormone but my level is .049 is that normal?

Unsure: what level is 049...I assume it's your TSH..... The levels to evaluate in patients on thyroid REPLACEMENT therapy are the t-4 and t-3 depending upon the kind of thyroid hormone you are taking PLUS HOW YOU FEEL and LOOK CLINICALLY! Hope this helps! Dr Z ...Read more

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Is a mild elevation of thyroid hormone harmful?

It Could Be: One thyroid hormone lab result is a proverbial window in time. No way to know without following up on that test. It could be normal , the same, lower, or higher when checked again in the context of other thyroid tests, including thyroid antibodies. ...Read more

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Thyroid hormone after a body scan when to restart it?

Ok to restart: Once the scan is finished, you can resume your previous regimen. ...Read more

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What doesparathyroid have to do with thyroid hormone?

Not much: Aside from their close location, really not much else in common. They do different functions. ...Read more

Dr. Sewa Legha
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more