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Doctor insights on: What Do Thyroid Blood Tests Show

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I have all symptoms of hypothyroidism, but blood tests are normal. plus a swollen thyroid left side. What can cause this? Hair is really falling out.

I have all symptoms of hypothyroidism, but blood tests are normal. plus a swollen thyroid left side. What can cause this? Hair is really falling out.

Other possibilities.: The Thyroid is not the only endocrine gland that affects metabolism, mood, menstrual cycles and hair follicle activity in women your age. It's quite possible that you are experiencing peri-menopause, or that you have Vitamin D deficiency. Has the enlargement of the thyroid gland been confirmed/examined with ultrasound? If not it should be. Your other hormones and a D level should be checked also. ...Read more

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Thyroid Blood Tests (Definition)

Thyroid blood tests include a wide array of tests, most common one being tsh, but based on results of tsh, i usually tend to check free T3 (liothyronine) and T4 levels, sometimes tpo (anti-thyroid antibodies_) as wella s other specific tests which are ...Read more


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I think I have a thyroid condition but it will not show in the blood tests. What do I do?

I think I have a thyroid condition but it will not show in the blood tests. What do I do?

Why do you think so?: The bigger question is, 'what leads you to believe that you have a thyroid condition?' is it pain or swelling of the thyroid gland? Symptoms that you read about in a book or online? A friend who had similar symptoms and they had a thyroid issue? A second opinion from an endocrinologist (a doctor who specializes in thyroid and other gland illnesses) is a good choice. Good luck! ...Read more

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I have many symptoms of under active thyroid but the blood tests show that I am within the normal ranges. What else could this be?

Not thyroid: Could be one or more of many things, but if thyroid levels are normal, it's not thyroid. Remember, diseases cause signs and symptoms, but the presence of signs/symptoms don't necessary mean a certain disease is present. That's what your doctor is for, have them help you. ...Read more

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Can someone tell me if it is possible for your blood tests to show hypothyroidism even if you don't have an underactive thyroid?

Can someone tell me if it is  possible for your blood tests to show hypothyroidism even if you don't have an underactive thyroid?

Thats how we tell: Screen with Thyroid Stimulating Hormone(TSH) and follow up testing with T4 and T3 (liothyronine) levels. There are 2 main differrent types of Hypothyroidism, with the most common being underactive thyroid whicvh would cause the T4 and T3 (liothyronine) levels to be low and the TSH to be high. Stress can also cause the TSH to be altered, but the T3 (liothyronine) and T4 would be normal. That is when we check Reverse T3 (liothyronine). Symptoms important too ...Read more

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Thyroid nodule at 3.4 x 4.7 x 2.3cm. Blood tests confirm all is normal. Ultrasound shows heterogeneous iso/small area hypechoic. Chances of cancer?

Thyroid nodule at 3.4 x 4.7 x 2.3cm.  Blood tests confirm all is normal.  Ultrasound shows heterogeneous iso/small area hypechoic.  Chances of cancer?

Yes, some: You need to see an endocrinologist.. Who would likely do a fine needle aspiration(fna) biopsy. Thyroid cancer needs to be ruled out by further testing. It has to be a consideration in your case. But thyroid cancer is easily treatable and highly curable(>95%). ...Read more

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For what length of time do thyroid blood tests take to get back?

For what length of time do thyroid blood tests take to get back?

24 hrs: 24-72 hours depending on the speed of the lab and how quickly they get the results to your doctor. ...Read more

Dr. Julie Abbott
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


Blood Tests (Definition)

Blood is usually drawn from your ...Read more