Thyroid Test
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Experiencing sluggishness or fatigue, hair loss, weight change, gastrointestinal symptoms, dry skin, or increased sweating?
These symptoms could be a sign of thyroid dysfunction, which affects millions of people every day. Measure 4 key thyroid biomarkers in one test to understand your levels, and see if any of them may be keeping you from feeling your best.
Measures TSH, Free T3, Free T4, TPO Ab
Finger prick sample
Prescriptions available
This thyroid panel measures 3 main thyroid hormones plus thyroid peroxidase antibodies
Your test results will measure your levels of 3 main thyroid hormones plus thyroid peroxidase antibodies. These circulating thyroid hormones have an impact on many functions of the body. By measuring the level of each marker, this thyroid function test can help you understand if you may be experiencing thyroid dysfunction.
Thyroid-Stimulating HormoneThyroid-stimulating hormone, or TSH, is a hormone produced by the pituitary gland that is responsible for controlling the production of the thyroid hormones T3 and T4 by the thyroid gland. The hormone TSH is considered the most sensitive marker for screening for thyroid diseases and conditions.
Thyroid Peroxidase AntibodiesThyroid peroxidase antibodies are antibodies that can bind to thyroid enzymes, suppressing thyroid function. If TPO antibodies are elevated, this could be suggestive of an autoimmune condition. In the case of hypothyroidism, or an underactive thyroid, Hashimoto’s thyroiditis may be the culprit, whereas hyperthyroidism, or an overactive thyroid is commonly caused by Graves’ disease.
Free T3T3 (triiodothyronine) is a hormone produced by the thyroid gland. While it is less abundant than T4, T3 is considered the more active of these two thyroid hormones. Together, these two thyroid hormones help determine the rate at which every cell in the body uses energy. Levels of T3 fluctuate when individuals have an under- or overactive thyroid gland. This test measures free T3, the free (not bound to protein), and biologically active form of the hormone.
Free T4T4 (thyroxine) is the predominant hormone produced by the thyroid gland. Together, T3 and T4 help determine the rate at which every cell in the body uses energy. Levels of T4 fluctuate when individuals have an under- or overactive thyroid gland. This test measures free T4, the free (not bound to protein), and biologically active form of the hormone.
Changes in thyroid hormone levels can cause hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid). Both conditions can lead to a variety of uncomfortable symptoms in your body.
Body
- Sluggishness and fatigue
- Thinning hair
- Changes in weight
- Cold intolerance
- Heat intolerance
Mind
- Depression
- Forgetfulness
- Nervousness
- Anxiousness
- Irritability
Gastrointestinal
- Constipation
- Frequent bowel movements
Skin
- Dry skin
- Increased sweating
At-home testing made easy
- Pre-paid shipping (both ways)
- Everything you need to collect your sample and send it in
- Detailed directions and an instructional video
- Our care team is standing by if you have questions
- Digital (and printable) results
- Educational video sessions, led by healthcare professionals

Thyroid Test
Free shipping
FSA / HSA accepted
Free shipping
FSA / HSA accepted

100% digital
Your results
Easy to access, even easier to understand
Gain meaningful insights about your health with easy-to-understand test results without the complex jargon.
You'll receive a complete breakdown of your report—including each marker tested and what your results mean for you.
Use your report to make an action plan with concrete next steps. And don't worry, we'll provide some additional resources and helpful tips along the way.
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FAQs
You have questions, we have answers
Though a part of the body that many people know little about, the thyroid plays a major part in daily wellness.
Both hyperthyroidism and hypothyroidism – too much thyroid activity and too little thyroid activity, respectively – are cause for concern. Because your thyroid controls much of your metabolism, which plays a vital role in your overall health, it’s important to monitor thyroid function. Hormone tests and thyroid scans may be helpful to many with related symptoms, as it is estimated that up to twelve percent of the population in the United States will develop thyroid disease during their lifetime. That’s almost fifteen million people who have thyroid gland problems, many of whom are unaware.
Anybody can experience thyroid disorder issues but some people are more susceptible than others:
Women (up to 10 times more likely than men to have thyroid disorders)
People with a family history of thyroid issues
Adults aged 50+
Individuals with type 1 diabetes
Women who have been pregnant within the past 6 months
People being treated with lithium for six months or more
Those with iodine deficiency or exposure
Smokers
People who have been exposed to radiation therapy, especially around the neck
Our at-home thyroid blood test is quick, easy, and convenient—allowing you to check your levels of the 3 main thyroid hormones as well as TPO antibodies without leaving your home.
Working with certified and experienced labs, our thyroid panel uses your blood spot samples to accurately measure various thyroid-specific hormones and compare those thyroid levels to common ranges.
The at-home thyroid test measures free T4, free T3, TSH, and TPO antibodies from a small blood spot sample taken with your kit.
TSH (thyroid stimulating hormone) controls thyroid gland function in the production of active thyroid hormones (T4 and T3), which together help control the rate at which your body uses energy. The thyroid hormone test also measures TPO antibodies, which are antibodies that your body may make that can suppress thyroid function. By measuring your levels of each, you can understand if you may be experiencing thyroid dysfunction.
Everlywell will provide detailed test result information of what a high or low level of TPO, free T4, free T3, or TSH means for your health.
At-home thyroid blood tests are a convenient starting point for determining whether you may have a thyroid condition and will give you an indication of what you should do next. For certain abnormal results, you will receive outreach to discuss potential next steps, and may be eligible to receive treatment, if applicable.
As always, we recommend sharing your results with your personal healthcare provider to discuss what your results mean for your specific case and to create a plan that’s best for you.
If your thyroid gland isn’t working correctly, it may be because you have an:
Underactive thyroid gland (hypothyroidism) – This means the thyroid is not producing enough thyroid hormone. Symptoms of hypothyroidism can include weight gain, fatigue, sensitivity to cold, muscle aches, and more.
Overactive thyroid gland (hyperthyroidism) – This means the thyroid is producing too much thyroxine (or T4). Symptoms of hyperthyroidism can include unexpected weight loss, nervousness and anxiousness, frequent sweating, heat insensitivity, and more.
If your thyroid is under-producing, you may experience ongoing symptoms including:
Sluggishness & fatigue
Weight gain
Muscle weakness, aches, tenderness
Feelings of sadness or depression
Cold sensitivity
Mental fogginess
Irregular or heavy menses (periods)
Constipation
Dry skin
Thinning hair
Low blood sugar
High cholesterol



