How to Test Your Testosterone: Blood Tests, At-Home Kits & What to Ask For

Medically reviewed by William "Billy" Kimbrell, APRN · Last reviewed September 2026

The standard way to check testosterone is with a blood test, usually starting with total testosterone. If low testosterone is suspected, major guidelines recommend testing early in the morning and confirming a low result with a second morning measurement. At-home kits can give you a number, but a clinical diagnosis should rest on appropriately collected lab testing plus your symptoms and history.

EliteRx provider Brian Herbert on total versus free testosterone and why "normal" labs don't always tell the full story.

How do you test testosterone levels?

Testosterone is measured from a blood sample, usually venous blood drawn from a vein in your arm at a lab. The lab runs the sample and reports your level in nanograms per deciliter (ng/dL). What varies is how you get that blood test ordered and drawn, and there are three common routes.

Provider-ordered blood testing

This is the best clinical route, and it is how testosterone testing at EliteRx works. Your provider decides which labs are appropriate, orders a comprehensive panel (not just a single number), and reviews the results with you in context. EliteRx does not use at-home kits. Labs are ordered through Fullscript and drawn at Quest: you book your own Quest appointment, show up, and the draw itself is typically about ten minutes. The labs are paid through EliteRx, an initial comprehensive panel is $155, and that panel includes substantially more testing than the price suggests. If you prefer, you can use your own health insurance for the labs instead. The point of the provider-ordered route is that someone who understands your whole picture decides what to test and what the results mean.

Direct-to-consumer lab testing

Some services let you purchase a testosterone panel yourself and then go to a clinical laboratory for a standard venous draw. This can be convenient, but there is an important distinction: self-ordered is not the same as self-diagnosed. You still get a real lab result, but a number without interpretation only tells you so much, especially if it lands near the edges of the range.

At-home testosterone test kits

At-home kits typically use a finger-prick blood sample, or in some products a saliva sample, that you collect and mail to a lab. They can be convenient for getting preliminary information, but collection and assay methods differ between products, so a home result should not automatically be treated as equivalent to a full diagnostic workup. It is a starting point, not a diagnosis.

What testosterone test should you ask for?

You do not need to walk in asking for an enormous hormone panel. In most cases, testing starts simple.

Total testosterone

Total testosterone measures all the testosterone in your blood, both the portion bound to proteins and the small unbound portion. It is the standard initial test. Major guidelines, including the Endocrine Society, start the diagnosis of low testosterone with a morning total testosterone measurement rather than a large panel.

Free testosterone

Free testosterone measures only the unbound, active portion. It is genuinely useful in specific situations: when your total testosterone is borderline (near the lower limit of normal), or when something is affecting SHBG and making the total harder to interpret. It is not something everyone needs added by default. The Endocrine Society also notes that free testosterone should be measured by reliable methods such as equilibrium dialysis or calculated from total testosterone, SHBG, and albumin, rather than by the less accurate direct immunoassays some labs use.

Bioavailable testosterone

Bioavailable testosterone refers to the free portion plus the portion loosely bound to albumin, which together are available to your tissues. It shows up on some panels but is not usually the starting point for most people.

SHBG, and why one number isn't always enough

SHBG (sex hormone-binding globulin) is a protein that binds testosterone in your blood. When SHBG is unusually high or low, your total testosterone can look misleading, high or low, without fully reflecting the amount of free testosterone available to your body. That is one of the main reasons a provider might order additional testing rather than stopping at a single total testosterone value.

What time of day should testosterone be tested?

Early in the morning. Testosterone follows a daily rhythm and is highest in the morning, which is why guidelines recommend measuring morning total testosterone and why many labs draw between about 7 and 10 AM. Exact instructions can vary by provider and lab, but the principle is consistent: an afternoon draw can read lower simply because of the time of day, not because anything is wrong.

Do you need to fast for a testosterone test?

For diagnosing low testosterone, yes. The Endocrine Society specifically recommends fasting morning measurements, because food and glucose intake can temporarily suppress testosterone readings. That said, not every testosterone measurement in every situation requires fasting, so follow the specific preparation instructions your ordering provider or lab gives you.

How to prepare for a testosterone blood test

• Schedule the draw for early in the morning.
• Follow any fasting instructions your provider or lab gives you.
• Tell your provider about all medications and supplements you take.
• When possible, avoid testing during a significant acute illness, which can temporarily lower testosterone.
• For repeat testing, try to match the same conditions (time of day, fasting) as the first test.

Is one testosterone test enough?

Not if the result is being used to diagnose low testosterone. The Endocrine Society recommends confirming a low result by repeating a morning fasting total testosterone measurement, because a single reading can be pulled around by timing, recent illness, sleep, and normal day-to-day variation.

If you want to understand what the resulting number actually means for someone your age, we cover that in normal testosterone levels by age.

When should you get your testosterone checked?

Testing makes the most sense when you have symptoms or signs that could point to low testosterone, not as a routine screen for every man. Major guidelines actually recommend against routine testosterone screening of men who have no symptoms.

Signs and symptoms that may warrant testing include low sex drive, erectile dysfunction, infertility, loss of muscle mass, reduced body or facial hair, and breast tissue changes. If you are weighing whether your symptoms make testing worthwhile, see signs of low testosterone in men. Fatigue is worth mentioning too, but carefully: fatigue on its own is nonspecific.

What happens if your testosterone test is low?

A low first result is the start of an evaluation, not the end of one. A typical path looks like this: confirm the low result with a second morning test, look at your symptoms alongside the numbers, then, if deficiency is confirmed, investigate the cause before discussing whether any treatment is appropriate.

Once low testosterone is genuinely established, guidelines recommend additional testing to find out why. Depending on the situation, that can include LH and FSH, which help distinguish primary testicular hypogonadism from secondary pituitary or hypothalamic causes, and sometimes prolactin, SHBG, or free testosterone. The point is to understand the cause, not to run every possible test at once. If treatment does turn out to be appropriate, that is a conversation about testosterone therapy and hormone care, evaluated for you specifically rather than assumed.

Can you test testosterone at home?

Yes, but it helps to understand what you are getting. Some kits use a finger-prick blood sample, others use saliva or a different collection method, and the sample is mailed to a lab. Home testing is convenient and can be useful for getting preliminary information.

The limitation is that collection and assay methods differ between products, and a home result does not, by itself, establish a diagnosis of low testosterone. Home testing can provide information, but current diagnostic guidelines are based on accurately measured blood testosterone collected under standardized conditions. If an at-home result is low or borderline, follow up with a provider for appropriately collected confirmatory testing, rather than starting treatment on the home result alone.

EliteRx does not use at-home testing. We order a comprehensive in-clinic panel through Fullscript, drawn at Quest, and evaluate total testosterone, free testosterone, and SHBG together, because that fuller picture is what actually tells us how much testosterone is available to your body, not just how much is present.

How much does testosterone testing cost?

Testosterone testing costs vary depending on which labs are needed and how they are ordered. At EliteRx, a typical initial hormone-evaluation panel is $155 and generally includes total testosterone along with other labs used to understand the broader hormone and health picture. A typical follow-up hormone panel is $125. Your provider determines which tests are appropriate for you, so not every patient receives the same panel. The labs are ordered through Fullscript and paid through EliteRx, drawn at Quest, and the cost is explained to you before testing is ordered, with no surprise billing. You may also use your own health insurance for the labs if you prefer.

Can you just ask your provider for a testosterone test?

Yes. If you are noticing changes that could be related to testosterone, the most useful thing you can do is describe what has actually changed and ask whether testing makes sense. A good evaluation looks at the symptoms themselves rather than assuming testosterone is either the whole answer or not worth checking. You deserve a thoughtful evaluation, not an automatic prescription and not an automatic dismissal.

Frequently asked questions

How can I test my testosterone at home?

At-home kits typically use a finger-prick blood sample or, in some products, saliva, which you collect and mail to a lab. They can be convenient for getting preliminary information, but collection and assay methods vary, and a home result should not be treated as a diagnosis on its own. A borderline or low result should be reviewed with a provider and confirmed with appropriately collected testing.

What is the best test for testosterone?

The standard starting test is a total testosterone blood test drawn in the early morning. Free testosterone is added in specific situations, such as a borderline total or a suspected SHBG issue, rather than ordered for everyone.

What time of day should testosterone be tested?

Early in the morning, when testosterone is highest. Many labs draw between about 7 and 10 AM, though exact instructions can vary by provider and lab.

Do you need to fast for a testosterone test?

For diagnosing low testosterone, the Endocrine Society recommends fasting morning measurements, since food and glucose can lower readings. Follow the specific instructions your provider or lab gives you.

Is one low testosterone test enough?

No. Guidelines recommend confirming a low result by repeating a morning fasting total testosterone measurement, because a single reading can be affected by timing, illness, sleep, and normal variation.

Can I just ask my provider for a testosterone test?

Yes. Tell your provider what symptoms have changed and ask whether testing makes sense. A good evaluation looks at the symptoms rather than assuming testosterone is the cause.

When should a man get a testosterone test?

When there are symptoms or signs that suggest low testosterone, such as low libido, erectile dysfunction, infertility, or loss of muscle mass. Routine screening of men with no symptoms is not recommended.

Does insurance cover testosterone testing?

It depends on your plan and whether the test is considered medically necessary. Costs also vary by how the test is ordered. EliteRx explains the cost before you test, and you can use your own insurance for the labs if you prefer.

How much does a testosterone blood test cost?

It varies depending on which labs are ordered and how. At EliteRx, a typical initial hormone-evaluation panel is $155 and a typical follow-up panel is $125, and the cost is explained to you before anything is ordered.