Low energy, reduced sex drive, or just not feeling like yourself? You’re not alone, and the latest low testosterone statistics show how common testosterone deficiency has become among men of different ages.
Here, we’re breaking down the latest data on low testosterone prevalence, age-related changes, lifestyle risk factors, common symptoms, TRT prescribing trends, treatment monitoring, and costs.
At Spartan Medical Associates, use your symptoms, lab results, medical history, and goals to determine whether testosterone replacement therapy could be an appropriate option for you.
Ready to get your vitality back? Book a free consultation to see whether TRT could be right for you.
The Prevalence of Testosterone Deficiency
What percentage of men have testosterone deficiency worldwide?
The global prevalence of testosterone deficiency is estimated to range from 10% to 40% of men.
How many men in the United States have low testosterone?
Low testosterone affects an estimated 13 million men in the United States.
What percentage of men over age 30 have low testosterone?
Research has found that about 1 in 4 men over age 30 have low testosterone levels, while only about 1 in 20 experience noticeable symptoms.
What percentage of men ages 20 to 39 have testosterone deficiency?
About 20% of men ages 20 to 39 have testosterone deficiency.
Are older men more likely to have testosterone deficiency than younger men?
Yes. Testosterone deficiency may affect as few as 1% of younger men, but as many as 50% of men age 80 and older.
Does the prevalence of male hypogonadism increase with age?
Biochemical hypogonadism becomes more common with age, affecting about 12% of men in their 50s and rising to 49% of men aged 80 and older.
Age-Related and Generational Testosterone Changes
Does testosterone decrease each year after age 30?
Yes. Once men reach their 30s, testosterone production can gradually decline by about 1% per year.
Are testosterone levels declining across generations?
Yes. One comparison found that a 60-year-old man measured in 2004 had testosterone levels about 17% lower than a 60-year-old man measured in 1987.
Does the prevalence of male hypogonadism increase with age?
Male hypogonadism becomes increasingly common with age:
- Under 50: 2%–6%
- 50s: 12%
- 60s: 19%
- 70s: 28%
- 80s: 49%
Health and Lifestyle Factors Linked to Low Testosterone
Are overweight men more likely to have low testosterone than men at a healthy weight?
Yes. One study found that 30% of overweight men had low testosterone, compared with just 6.4% of men with a normal weight.
Are men with diabetes more likely to have low testosterone than men without diabetes?
Yes. One study found that 24.5% of men with diabetes had low testosterone, compared with 12.6% of men without diabetes.
Do non-smokers have higher testosterone levels than smokers?
Among normal-weight adults without major chronic diseases, non-smokers had testosterone levels that were about 4% to 9% higher than those of smokers.
Does chronic alcohol use lower testosterone levels?
Yes. Chronic alcohol drinkers were found to have testosterone levels about 12% lower than non-drinkers.
Can regular exercise increase testosterone levels in men?
One study found that adult men increased their testosterone levels by about 9% after 12 weeks of regular aerobic exercise.
Can lack of sleep lower testosterone levels in men?
Yes. Sleeping fewer than five hours per night has been associated with a 10% to 15% reduction in testosterone levels in healthy young men.
Symptoms of Low Testosterone
What percentage of men with low testosterone experience erectile dysfunction?
Nearly 70% of men diagnosed with low testosterone report problems with erectile dysfunction.
What percentage of men with low testosterone experience a reduced sex drive?
About 63% of men diagnosed with low testosterone report a lowered sex drive.
Testosterone Replacement Therapy Use and Prescribing Trends
Has testosterone use increased among men over age 40?
In a study of more than 10 million Americans, testosterone use among men over age 40 increased more than threefold between 2001 and 2011.
Have testosterone replacement therapy prescriptions increased since 2019?
Yes. TRT prescriptions increased from 7.3 million in 2019 to more than 11 million in 2024.
Have testosterone replacement therapy prescriptions increased since 2022?
Yes. In 2022, the number of testosterone therapy patients increased by 27% overall, including a 35% increase among people ages 45 to 54 and a 58% increase among those ages 35 to 44.
Have testosterone prescriptions increased for men in U.S. military treatment facilities?
Yes. A study of U.S. military treatment facilities found that testosterone prescriptions more than doubled between 2007 and 2011.
Which regions of the United States saw the largest increases in testosterone therapy use?
Between 2018 and 2022, testosterone therapy patients increased the most in the South at 52%, followed by the West at 28% and the Northeast at 23%. The Midwest saw no increase.
What are the most common reasons men are prescribed testosterone?
From 2001-2011, the most common reasons for testosterone prescriptions were hypogonadism (51%), fatigue (35%), erectile dysfunction (32%), and psychosexual dysfunction (12%).
TRT Treatment and Monitoring
What percentage of new testosterone users receive treatment for less than 30 days?
About 20% of new testosterone users receive treatment for less than 30 days.
What percentage of new testosterone users had their testosterone levels checked within the previous year?
About 75% of new testosterone users had their testosterone levels measured within the previous year.
What are the most common side effects of testosterone cypionate?
The most commonly reported side effects of testosterone cypionate are injection-site redness, affecting 26% of users, and injection-site reactions, affecting 4%.
Testosterone Therapy Costs and Market Growth
How large is the global testosterone replacement therapy market?
The global TRT market was valued at about $1.9 billion in 2024 and is projected to reach approximately $2.9 billion by 2034.
Have testosterone therapy prices decreased in recent years?
Between 2018 and 2022, testosterone therapy prices decreased by an average of 4.2% per year.
Book A Consultation To Find Out If TRT Could Be Right For You
You don’t have to keep pushing through low energy, reduced sex drive, or changes in strength.
At Spartan Medical Associates, we use your symptoms, lab results, medical history, and goals to determine whether testosterone replacement therapy could be the right option for you.
Book a free consultation to find out if TRT could be right for you.
Sources
James Anaissie. “Testosterone deficiency in adults and corresponding treatment patterns across the globe.” National Library of Medicine. April 6, 2017. https://pmc.ncbi.nlm.nih.gov/articles/PMC5422691/
Urology Care Foundation. “Low Testosterone: Symptoms, Diagnosis & Treatment.” https://www.urologyhealth.org/urology-a-z/l/low-testosterone
Western Michigan Urological Associates. “Low Testosterone: Are you “One in Four”?” October 1, 2022. https://wmuro.com/low-testosterone-are-you-one-in-four/
Dr. Sean P. Nikravan, MD, FACE. “Why More Younger Men Have Low T.” January 4, 2024. https://www.seannikravanmd.com/post/why-more-younger-men-have-low-t
Duk Han Ko. “Prevalence of Low Testosterone According to Health Behavior in Older Adults Men.” December 24, 2020. National Library of Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC7824172/
Dr. Ryan Meade. “Why Testosterone Levels Are Falling Fast.” March 4, 2026. Spital Clinic. https://www.spitalclinic.com/articles/testosterone-levels-declining-generational-comparison
Randy Magnuson. “Low testosterone facts and statistics.” March 27, 2026. SingleCare. https://www.singlecare.com/blog/news/testosterone-statistics/