Hormones play a powerful role in how we feel, function, and age. And testosterone is no exception. When levels are off, the effects can show up in everything from mood and energy to sexual function and physical performance. If you’re experiencing symptoms like lethargy and low libido, a testosterone test can offer valuable insight.
This simple blood test measures how much testosterone is circulating in your body. It helps guide treatment decisions for a wide range of concerns. Here’s what to expect from the test, what your results might mean, and when it’s time to talk to your doctor.
What is Testosterone?
Testosterone is an important hormone that impacts sexual development, muscle mass, bone density, and overall mental and physical wellness. While commonly associated with male reproductive health, it is also present in females in smaller amounts.
The hormone is primarily produced in the gonads or:
- Testicles in males
- Ovaries in females
The adrenal glands also contribute small amounts in both sexes.
How to Test Testosterone Levels
Testosterone travels in the bloodstream in two forms:
- Free testosterone – not attached to proteins
- Bound testosterone – attached to albumin or sex hormone-binding globulin, SHBG
Depending on your symptoms, your doctor may test:
- Total testosterone. Measures both free and bound testosterone
- Free, unbound testosterone. Shows how much testosterone is in the form that’s more readily available for the body to use.
- Bioavailable testosterone. This test includes free testosterone and albumin-bound testosterone. Albumin-bound testosterone is loosely bound and more easily utilized by the body. This test may offer a fuller picture of testosterone’s effects on your body.
When is a Testosterone Test Needed?
Doctors will recommend laboratory testing if you have symptoms that suggest a possible hormonal imbalance. In men, low testosterone is the primary issue. Symptoms may include:
- Reduced sex drive
- Infertility
- Decreased muscle mass and strength
- Erectile dysfunction
- Fatigue and depression
- Difficulty concentrating
What to Expect During a Testosterone Blood Test
Since testosterone levels are highest in the morning, doctors often recommend scheduling the test between 7 a.m. and 10 a.m.
The procedure is a quick and straightforward arm blood draw; results are usually available within a few days.
Testosterone Test Results
Blood test reports will include your testosterone level measured in nanograms per deciliter (ng/dL). The reference range for normal levels in men is 300-1,000 ng/d.L
What If Your Testosterone Test Is Abnormal?
An abnormal result does not always indicate a medical condition. Many factors, such as medication use, stress, and temporary health fluctuations, can influence hormone levels.
If your results are abnormal, your doctor may order additional testing. They may also recommend further review of your medical history and symptoms.
At-Home Testosterone Tests: Are They Reliable?
At-home test kits are available, but their accuracy varies. Factors that can affect their reliability include:
- Sample degradation
- Inconsistent collection techniques
- Differences in laboratory processing
For the best, most accurate results, a blood test is recommended. Your blood may be drawn in the doctor’s office or at a local laboratory.
See a Urologist
Testosterone testing is an essential diagnostic tool for identifying hormone-related health issues. If you suspect a hormone imbalance, it’s time to make an appointment with one of our specialists for a complete evaluation.
Don’t continue to live with the unwanted symptoms of low testosterone – call (541) 334-3350 for an appointment today.