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Doctor insights on: What Is The Difference Between Hyperthyroidism And Hypothyroidism

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Dr. Robert Lang
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Dr. Rashed Hasan
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Dr. Su Fairchild
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Hypothyroidism (Definition)

Hypothyroidism is also known as Underactive thyroid. Hypothyroidism in a child is a medical condition in which the child has low levels of thyroid hormone. Thyroid hormone is crucial for development, especially development of the brain. Lack of thyroid hormone can lead to mental retardation as well as failure to grow. Treatment via thyroid hormone ...Read more


Dr. Alan Feldman
Board Certified, Endocrinology
36 years in practice
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Is there a way to tell difference between hyperthyroidism and hypothyroidism without going to the doctors?

Dr. Alan Feldman
Board Certified, Endocrinology
36 years in practice
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Is there a way to tell difference between hyperthyroidism and hypothyroidism without going to the doctors?

You can't: Hyperthyroidism is overactive thyroid, hypothyroidism is underactive thyroid. The symptoms are opposite each other, and are nonspecific. Most people who have symptoms that seem like they are thyroid related do not actually have thyroid disease when they are tested. The only way of being sure is to see a doctor and have a blood test (tsh, t4). ...Read more

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Dr. Rashed Hasan
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29 years in practice
624K people helped
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Dr. Rashed Hasan
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Dr. Michael Kleerekoper
Board Certified, Endocrinology
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Dr. Alan Feldman
Board Certified, Endocrinology
36 years in practice
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Whats the difference between hypothyroidism & hyperthyroidism.....

Dr. Alan Feldman
Board Certified, Endocrinology
36 years in practice
2M people helped
Whats the difference between hypothyroidism & hyperthyroidism.....

Opposite conditions: Hypothyroidism is an underactive thyroid and can cause symptoms of weight gain, swelling, fatigue, sleepiness, constipation, feeling cold, hair loss. Hyperthyroidism is an overactive thyroid and can cause weight loss, feeling hot, palpitations, diarrhea, muscle weakness, shakiness, difficulty sleeping, anxiety. ...Read more

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Dr. Rashed Hasan
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Dr. Diane Minich
Board Certified, Family Medicine
32 years in practice
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If I have hyperthyroid/graves, after a lobectomy is my thyroid function likely to change to hypothyroid or remission? Or won't make a difference?

Dr. Diane Minich
Board Certified, Family Medicine
32 years in practice
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Can change: To hypothyroid. Your doctor should periodically monitor your thyroid with blood work. ...Read more

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Dr. Thomas Knecht
Board Certified, Endocrinology
26 years in practice
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Dr my free T4 is 1.03 and TSH is 3.18 normal between .1 to 4.8 shown in result. I want to clarify i am having hypothyroid or hyperthyroid?

Dr. Thomas Knecht
Board Certified, Endocrinology
26 years in practice
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Dr my free T4 is 1.03 and TSH is 3.18 normal between .1 to 4.8 shown in result. I want to clarify i am having hypothyroid or hyperthyroid?

Neither: Hi. Maybe I'm missing yor point. You have a normal TSH and a normal free T4, and you're wondering if you're hypothyroid or hyperthyroid? You left out the correct answer...normal thyroid. Normal is normal. That sounds trite, doesn't it?! But true. Normal thyroid function is normal, not hypo, not hyper, but normal. If I'm missing the point, please clarify. Good luck! ...Read more

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Dr. Philip Kern
Board Certified, Endocrinology
38 years in practice
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What is the relationship between thyroid hormone and estrogen? Why there's amenorrhoea in hyperthyroidism and menorrhagia in hypothyroidism?

Dr. Philip Kern
Board Certified, Endocrinology
38 years in practice
2M people helped
What is the relationship between thyroid hormone and estrogen? Why there's amenorrhoea in hyperthyroidism and menorrhagia in hypothyroidism?

Thyroid and periods: With either hyper or hypothyroidism, there can be a wide variety of menstrual disorders. It is not just a matter of estrogen, the cycling of estrogen and Progesterone is usually thrown off. ...Read more

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Dr. Susan Wingo
Board Certified, Endocrinology
28 years in practice
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Is it possible to be hyperthyroid with hypothyroid symptoms?

Dr. Susan Wingo
Board Certified, Endocrinology
28 years in practice
4M people helped
Is it possible to be hyperthyroid with hypothyroid symptoms?

Yes.: While some symptoms of hypothyroidism are the opposite of hyperthyroidism, some are the same! Both hypo and hyperthyroidism can cause fatigue, weight gain, and poor concentration. Or the symptoms could be unrelated to the thyroid. See your doctor to find out what caused the hyperthyroidism, make a plan for treating it, and then, if symptoms are still present, finding what else might be going on. ...Read more

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Dr. Robert Lang
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47 years in practice
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I was hypothyroid but now have hyperthyroid, what can I do?

Dr. Robert Lang
Board Certified, Endocrinology
47 years in practice
1M people helped
I was hypothyroid but now have hyperthyroid, what can I do?

See your doctor: The most common cause would be that you are getting too much medication. Rarely, a patient with hypothyroidism will convert to graves' disease or autoimmune hyperthyroidism. This will require medication radioactive iodine treatment or surgery. ...Read more

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Dr. Susan Wingo
Board Certified, Endocrinology
28 years in practice
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I was hypothyroid but now am hyperthyroid - should I discontinue my meds so I don't get more hyper?

Dr. Susan Wingo
Board Certified, Endocrinology
28 years in practice
4M people helped

No: This may be due to taking too much thyroid hormone, but stopping the thyroid pill would likely lead to too little thyroid hormone. Most often, in this situation, a dose adjustment is needed. This means working closely with the doctor who prescribed the thyroid hormone for you to find the "just right" dose for you.. ...Read more

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Dr. Susan Wingo
517 doctors shared insights

Hyperthyroidism (Definition)

Hyperthyroidism is also known as Overactive Thyroid. Hyperthyroidism, often called "overactive thyroid," is a condition where the thyroid secretes too much of the thyroid hormones. Common symptoms include heat intolerance, increased appetite, ...Read more


Dr. Susan Wingo
486 doctors shared insights

Overactive Thyroid (Definition)

Hyperthyroidism, often called "overactive thyroid," is a condition where the thyroid secretes too much of the thyroid hormones. Common symptoms include heat intolerance, increased appetite, ...Read more


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Dr. Rashed Hasan
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