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Doctor insights on: Underactive Thyroid

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Do lots of people get underactive thyroid, or is it unusual?

Do lots of people get underactive thyroid, or is it unusual?

Yes, very common: Underactive thyroid is very common, estimated to affect about 5% of the us population. The most common cause is an autoimmune process where your body attack itself. Diagnosis is done through blood tests. Treatment is replacement of thyroid hormone, usually through a pill. ...Read more

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Dr. Su Fairchild
1,212 doctors shared insights

Hypothyroidism (Definition)

The thyroid gland is an endocrine organ located in the front part of the neck. Its role is to make thyroid hormones, which control the way cells use energy. Hyperthyroidism results when the thyroid gland is overactive and too much thyroid hormone is produced, which speeds up metabolism. This results in weight loss, a quick heartbeat, sweating, nervousness, ...Read more


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What are some symptoms of underactive thyroid?

What are some symptoms of underactive thyroid?

Many: Some common symptoms are: fatigue, sensitive to cold, dry skin, constipation, hoarse voice, weight gain, high cholesterol, muscle ache/weakness, joint pain, heavy periods, brittle nails/hair, depression. Many other conditions can share these symptoms so if you suspect it, get a thyroid blood test. ...Read more

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What are the signs of underactive thyroid?

What are the signs of underactive thyroid?

Depends: With mild hypothyroidism, there may be no symptoms.As the level of thyroid hormone diminishes, however, you may notice fatigue, weight gain, dry skin and hair.You may also feel cold much of the time.A simple blood test usually confirms the diagnosis. ...Read more

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I was diagnosed with underactive thyroid at 20 yrs old.. I moved..Then i was told it was fine. Is that possible? I'm 36 yrs now.

I was diagnosed with underactive thyroid at 20 yrs old.. I moved..Then i was told it was fine. Is that possible? I'm 36 yrs now.

Yes: Especially if you don't have anti-thyroid antibodies, thyroid function may be temporarily aberrant , or, the interpretation of labs when off of levothyroxine may be different between physicians. If you feel well off of medication that is also a good sign. ...Read more

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At what age do they routinely test for underactive thyroid?

At what age do they routinely test for underactive thyroid?

No routine: There probably isn't a routine age at which it is recommended that all people be tested for an underactive thyroid. However, older people can have an underactive thyroid with unusual symptoms or, essentially no symptoms at all. So many doctors will fairly routinely test their patients' thyroid functions when they are 65 or so. ...Read more

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What type of tests need to be done in order to find the cause of underactive thyroid?

What type of tests need to be done in order to find the cause of underactive thyroid?

Blood tests: In the us the most commonly identifiable reason for an under active thyroid is autoimmune. Therefore, blood tests to look for anti thyroid antibodies would be helpful. ...Read more

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How can I know if I have an underactive thyroid?

How can I know if I have an underactive thyroid?

Tests and Symptoms: Symptoms of low thyroid function are commonly fatigue, weight gain, heavy periods (females), dry skin, hair thinning and loss, depression and constipation. Tsh, free T3 (liothyronine) and free T4 (if TSH is borderline) as well as some other older tests like morning baseline temperature and tendon reflex testing can all detect low thyroid function. ...Read more

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Does TSH 4, 83 mean hypothirodism ( underactive thyroid) and ft4 - is 9 ( does it also mean underactive thyiroid) ?

Does TSH 4, 83 mean hypothirodism ( underactive thyroid) and ft4 - is 9 ( does it also mean underactive thyiroid) ?

It depends/can mean,: This can mean under active thyroid depending on the ranges and whether or not there're symptoms of hypothyroidism, like fatigue, sensitivity to cold, and thinning of hair. The TSH is high normal to high at 4.83 if the upper limit is 5.0 or 3.0 respectively, while the free T4 is low normal if the units of measurement are pool/l. You've already got hypothyroidism so this would help reinforce it. ...Read more

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How can I treat my underactive thyroid?

How can I treat my underactive thyroid?

Med eval: Please seek medical evaluation by your physician, an internist or an endocrinologist. After comprehensive assessment, a treatment plan will be recommended to you. ...Read more

Dr. Quang Nguyen
850 doctors shared insights

Hypothyroidism (Adult) (Definition)

Hypothyroidism is a condition where the thyroid gland does not secrete enough of the thyroid hormones. Symptoms include cold intolerance, constipation, and fatigue. ...Read more


Dr. Sheila Smith
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