The Testosterone Boom Is Real
Testosterone therapy prescriptions in the United States increased dramatically over the past two decades, rising more than fourfold between the early 2000s and the mid-2010s, according to research published in JAMA Internal Medicine. The trend has been driven by direct-to-consumer advertising, a growing wellness industry around men's health, and broader cultural conversation about "Low T."
That growth has prompted researchers and clinicians to ask a pointed question: Are all of these men actually candidates for treatment?
What the Guidelines Actually Say
The American Urological Association and the Endocrine Society both recommend that testosterone therapy be considered only for men who have two things: consistently low testosterone levels confirmed by blood tests, and symptoms that can be attributed to that deficiency. Symptoms can include low libido, fatigue, reduced muscle mass, and depression.
Critically, a low number on a lab test alone is not enough. Testosterone levels naturally fluctuate throughout the day and can be affected by illness, poor sleep, obesity, and stress. Guidelines call for at least two separate morning measurements before a diagnosis is made.
Where the Research Raises Red Flags
Studies have found that a notable share of men prescribed testosterone therapy did not have their diagnosis confirmed by the two-test standard recommended by major medical organizations. Some received prescriptions based on a single blood draw, or without a documented evaluation of symptoms.
A study published in JAMA Internal Medicine examined prescription patterns and found that many men starting testosterone therapy had not undergone the diagnostic workup that clinical guidelines require. The researchers noted this raises concerns about whether the potential benefits outweigh the risks for men who may not have true hypogonadism — the clinical term for testosterone deficiency.
The Risks Are Real and Worth Knowing
Testosterone therapy is not without trade-offs. Known risks include suppression of the body's own testosterone production, reduced sperm count and fertility, increased red blood cell count (which can raise the risk of blood clots), acne, and sleep apnea. Long-term cardiovascular effects remain an active area of research.
In 2015, the FDA required manufacturers to add a warning to testosterone product labels noting that the drugs are approved only for men with low testosterone caused by certain medical conditions, not for age-related decline alone.
Age-Related Decline Is Normal — and That's the Gray Area
Here is where it gets nuanced. Testosterone does decline naturally with age — typically about one to two percent per year after age 30. Many men in their 50s and 60s have levels that fall in a gray zone: below the statistical average for younger men, but not low enough to clearly explain their symptoms.
For these men, the decision to treat is genuinely complex. Lifestyle factors like weight loss, resistance exercise, better sleep, and stress reduction have been shown to meaningfully raise testosterone levels in some men — without the risks that come with hormone therapy. Those options are worth exploring first, in conversation with a qualified physician.
What to Ask Your Doctor
If you are curious about your testosterone levels or have symptoms that concern you, the right move is a conversation with your doctor — not a self-diagnosis from a symptom quiz on a clinic's website. A few questions worth raising:
- Has my testosterone been tested twice, on separate mornings, as guidelines recommend?
- Could another condition — thyroid issues, sleep apnea, depression, or obesity — explain my symptoms?
- What lifestyle changes might help before considering hormone therapy?
- What monitoring would be involved if I do start treatment?
The Bottom Line
Testosterone therapy is a legitimate treatment for men with confirmed, clinically significant deficiency — but research suggests it may be reaching men who have not been fully evaluated. If you have symptoms that concern you, start with a thorough workup from a doctor you trust, not a quick prescription. The science supports caution, a complete diagnosis, and a look at lifestyle changes before committing to long-term hormone therapy.
