Disclaimer: This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before starting any treatment.
You got your blood work back. There’s a number on the page. Now what? A testosterone result without context is hard to interpret, and the reference ranges on the lab report aren’t always helpful.
Here’s what testosterone levels actually mean by age, and why the number alone doesn’t tell the whole story.
What is total testosterone?
Most labs report total testosterone, which includes all the testosterone in your blood, both bound to proteins and free-floating. Reference ranges vary by lab, but most adult male ranges fall between 300 and 1,000 ng/dL.
Below 300 ng/dL is generally considered low by the Endocrine Society’s guidelines. But the right range for any given person depends on age, symptoms, and overall health.
Typical testosterone ranges by age
The Baltimore Longitudinal Study of Aging followed men across decades and documented consistent testosterone decline with age. General typical ranges:
- Ages 20-29: 600-900 ng/dL
- Ages 30-39: 500-800 ng/dL
- Ages 40-49: 400-700 ng/dL
- Ages 50-59: 350-650 ng/dL
- Ages 60+: 300-550 ng/dL
These are approximations. Individual variation is wide. The important point: decline is normal, but decline that causes symptoms is worth addressing rather than just accepting as inevitable.
Free vs. total testosterone
Total testosterone includes the portion bound to sex hormone-binding globulin (SHBG) and albumin. Free testosterone is the unbound, biologically active portion that can actually enter cells and do its job.
Some men have normal total testosterone but low free testosterone because their SHBG is high. They experience symptoms of deficiency despite a normal top-line number. That’s why a thorough evaluation includes free T and SHBG, not just the total.
What “low” really means
The Endocrine Society defines hypogonadism as total testosterone below 300 ng/dL combined with symptoms. Both conditions need to be present. A low number without symptoms, or symptoms without a low number, doesn’t automatically mean treatment is needed.
A man at 295 ng/dL who feels fine is in a completely different situation than a man at 310 who’s exhausted, has no sex drive, and feels like a different person. The lab number is one data point. Visit our low testosterone page for more on what a clinical evaluation includes.
Why symptoms matter as much as numbers
Two men with identical testosterone levels can feel completely different. Individual sensitivity to testosterone varies significantly. That’s why treatment decisions at Men’s Wellness Centers combine lab results with symptoms, not just the number on the report.
If your number is technically in range but something feels off, that’s still a conversation worth having. Common signs of low T include persistent fatigue, low libido, mood changes, and unexplained weight gain.
Getting tested in Virginia
At Men’s Wellness Centers, testing is done in-clinic with same-day results at all three Virginia locations: Richmond (Glen Allen), Newport News, and Virginia Beach. We run total and free testosterone, SHBG, and often LH, FSH, and a metabolic panel. Your physician reviews the results with you that same visit.
If levels are low and symptoms fit, we walk through what testosterone replacement therapy involves, including delivery method options, costs, and how long results take.
The initial consultation is free. Call 866-344-4955 or book online.
Medical references
- Harman SM, et al. “Longitudinal effects of aging on serum total and free testosterone levels in healthy men.” Journal of Clinical Endocrinology & Metabolism. 2001. PubMed: 11178927
- Bhasin S, et al. “Testosterone Therapy in Men with Androgen Deficiency Syndromes: An Endocrine Society Clinical Practice Guideline.” JCEM. 2010. PubMed: 20525905
Disclaimer: This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before starting any treatment.