Question 1

why does thyroid hormone cause exophthalmos?

Accepted Answer

It doesn't: Graves' disease can cause both high thyroid hormone levels (hyperthyroidism) and bulging eyes (exophthalmos). The cause of both of these manifestations is antibodies that target a person's own proteins. So it's not really correct to say that the high thyroid levels cause the eye problems. While they do both occurs in graves' disease, other causes of hyperthyroidism do not cause the eye problems.

Question 2

can low thyroid hormone levels cause menopause?

Accepted Answer

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!

Question 3

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

Accepted Answer

No: Only if you use too high of a dose or increase your replacement dose too quickly.

Question 4

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

Accepted Answer

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.

Question 5

what doesparathyroid have to do with thyroid hormone?

Accepted Answer

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

Question 6

what symptoms will happen if u have too much thyroid hormone?

Accepted Answer

Hyperthyroidism: The most common symptoms/signs are being jittery, nervousness, tachycardia, fatigue, diarrhea, tremor, heat intolerance, reduction in menstrual flow, weight loss despite increased appetite, hypertension, increased perspiration, etc
it could be other symptoms/signs depending on the cause and degree of increase in the hormone level.

Question 7

what would happen if the body doesn't have enough thyroid hormone?

Accepted Answer

Poor metabolism: Many symptoms like sluggish metabolism, weight gain, constipation, high cholesterol, brittle nail, dry skin, hair loss, irregular periods and more.

Question 8

how is tyrosine related to thyroid hormone?

Accepted Answer

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.

Question 9

at what age thyroid hormone synthesis normally begins ?

Accepted Answer

In utero: About the 8-12 week of pregnancy while the fetus is still in utero.

Question 10

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

Accepted Answer

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.

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Doctor answers about:

What disorder causes hyposecretion of thyroid hormone in adults

A member asked:

Why does thyroid hormone cause exophthalmos?

A member asked:

Can low thyroid hormone levels cause menopause?

A member asked:

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

A member asked:

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

A member asked:

What doesparathyroid have to do with thyroid hormone?

A member asked:

What symptoms will happen if u have too much thyroid hormone?

A member asked:

What would happen if the body doesn't have enough thyroid hormone?

A member asked:

How is tyrosine related to thyroid hormone?

A member asked:

At what age thyroid hormone synthesis normally begins ?

A member asked:

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

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