Testosterone Level Test
This page explains the testosterone level test, what it measures, and how to arrange it. A testosterone level test measures the amount of testosterone, a hormone that affects sex drive, muscle mass, and mood, in your blood. It is ordered to evaluate symptoms like low energy, infertility, or erectile difficulties, or to monitor hormone therapy.
- Sample type
- blood
- Category
- Hormone
- Turnaround
- 1-3 business days
- Price
- $118
- Referral
- Not required
A testosterone level test measures the amount of testosterone, a hormone that affects sex drive, muscle mass, and mood, in your blood. It is ordered to evaluate symptoms like low energy, infertility, or erectile difficulties, or to monitor hormone therapy.
What it measures
- Total testosterone — The main measure of all testosterone in your blood.
- Free testosterone — The small portion not attached to proteins, which is active in your body.
- Bioavailable testosterone — Testosterone that is loosely bound and easily used by tissues.
- SHBG (sex hormone-binding globulin) — A protein that binds testosterone and can affect total levels.
- Albumin — Another protein that binds hormones; sometimes checked with SHBG.
Who it is for
Doctors typically order this test for men with symptoms of low testosterone, such as fatigue or reduced sex drive, and for women with excess hair growth or irregular periods. It may also be used to monitor testosterone therapy.
Preparation
Fasting is not usually required. Because testosterone levels are highest in the morning, your doctor may ask you to have the blood drawn before 10 a.m. Tell your provider about any medications or supplements you take.
Results and what they mean
Results are reported as a number in nanograms per deciliter (ng/dL) or similar units, alongside a reference range. Your clinician interprets the result based on your age, sex, symptoms, and other tests. This is general information only and not medical advice; discuss your results with a qualified healthcare provider.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the testosterone level test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to fast for this test?
No, fasting is not typically required. However, morning testing is often recommended because testosterone levels vary throughout the day.
How long does it take to get results?
Most results are available within 1 to 3 business days.
Can I check my testosterone at home?
Some home test kits are available, but they may not be as accurate as a blood draw at a lab. Discuss any home results with your doctor.
What can affect my testosterone level?
Time of day, stress, sleep, medications, and certain health conditions can all influence your level. Your doctor will consider these factors when interpreting your result.