A new study estimates that 100,691 active-duty soldiers would test under the testosterone line the Pentagon now uses to flag low T. That’s about a quarter of the troops measured. Explains the last formation run.
The study, published Oct. 15 in the medical journal JAMA, used one-time morning blood tests from soldiers at five Army bases, collected from August 2024 to January 2026. Researchers from Pennington Biomedical Research Center and the Army Research Institute of Environmental Medicine ran the numbers.
The numbers
- 20% of male soldiers under 30 came in below 300 ng/dL, the cutoff set by the American Urological Association.
- 32.8% of soldiers 30 and older came in below it.
- Scaled to the whole active-duty Army, that works out to 100,691 soldiers.
Why it matters now
In July, Hegseth ordered testosterone screening for troops 30 and older at their Periodic Health Assessment and said it keeps the force on the “leading edge of lethality.” September guidance limited the mandatory screening to male service members for now.
Come in under 300 and you get a second morning blood draw before anyone calls it low T. Treatment is optional. The choices are a shot once or twice a week, a daily pill, or a gel.
That’s two 0700 sick call trips for something your platoon sergeant has been diagnosing by eye since basic.
The fine print
The researchers wrote that routine screening will mean “confirmatory testing and clinical evaluation for many male service members.” One low reading does not mean you have hypogonadism, the medical name for the real condition.
Treatment is long term. Side effects can include mood swings, irritability, aggression, blood clots and a low sperm count that can cause infertility. Your squad leader already has the aggression part handled.
A study last year found only 0.43% of active-duty men, 12,112 out of more than 2.8 million, had an actual hypogonadism diagnosis. The highest rates were among the most senior troops, mostly general officers and warrant officers. So the guys most likely to actually have it are the ones telling you to hydrate.
What it means for you
Lead exposure, combat, injuries, sleep deprivation and mental health conditions can all push testosterone down. Four hours of sleep before a 12-mile ruck knocks out two of those before breakfast.
- Under 30, you only get screened if you ask or your provider sees signs.
- 30 or older, it’s part of your PHA now.
- If your number comes back low, treatment is your call. Your first sergeant gets no vote.
Waiting on your second blood draw? Grab the Legalize Anabolic Steroids Sticker at e4mafia.shop. Do not show it to your PCM.
Cover photo: An Army health care specialist at Andrew Rader Army Health Clinic draws blood from a National Defense University student during medical in-processing in Washington, D.C., Aug. 4, 2025. The people pictured are unconnected to the testosterone study. Defense Health Agency photo by Michelle Gonzalez, via DVIDS (ID 9241368), https://www.dvidshub.net/image/9241368/ndu-rodeo-medical-inprocessing. The appearance of U.S. Department of War (DoW) visual information does not imply or constitute DoW endorsement.
Follow E-4 MAFIA
More barracks news, memes, and new patches drop here first:
Sources
- Military Times, “Routine testosterone screening of US troops may require extensive follow-on care, study finds,” by Patricia Kime, Oct. 15, 2026, https://www.militarytimes.com/news/your-military/2026/10/15/routine-testosterone-screening-of-us-troops-may-require-extensive-follow-on-care-study-finds/
- JAMA, “Testosterone Screening Thresholds in Active-Duty US Male Service Members,” Hennigar SR, Heymsfield SB, Bukhari AS, Lieberman HR, Berryman CE (Pennington Biomedical Research Center; US Army Research Institute of Environmental Medicine), published online Oct. 15, 2026, doi:10.1001/jama.2026.19794, https://jamanetwork.com/journals/jama/fullarticle/2855385
- U.S. Department of War, “Statement by Chief Pentagon Spokesman, Sean Parnell, on Enhanced Screening Protocol to Optimize Warfighter Performance and Enhance Force Readiness,” July 15, 2026, https://www.war.gov/News/Releases/Release/Article/4546628/statement-by-chief-pentagon-spokesman-sean-parnell-on-enhanced-screening-protoc/
- Defense Health Agency, “Department releases guidance on implementing testosterone deficiency screenings,” by Todd Lopez, Sept. 18, 2026, https://www.dha.mil/News/2026/09/18/14/32/Testosterone-Deficiency-Screenings-for-Male-Service-Members
- PBS NewsHour (AP), “Pentagon moves forward with mandatory testosterone testing for most male troops,” Sept. 18, 2026, https://www.pbs.org/newshour/world/pentagon-moves-forward-with-mandatory-testosterone-testing-for-most-male-troops
