Key facts
- Defense Secretary Pete Hegseth announced mandatory testosterone screening for all active duty and reserve military personnel aged 30 and older.
- Screenings will be part of yearly health assessments, with voluntary screening available for those under 30.
- Hegseth stated the goal is to optimize performance, resilience, and long-term health, not artificial enhancement.
- The Endocrine Society noted insufficient evidence to support population-level screening for hypogonadism in asymptomatic men.
- Experts expressed concerns about potential health consequences and inappropriate prescriptions of testosterone therapy.
Defense Secretary Pete Hegseth announced that the U.S. military will implement mandatory testosterone deficiency screening for all active duty and reserve personnel aged 30 and older, as part of their yearly health assessments. Individuals under 30 can also request screening. Hegseth stated the initiative aims to "optimize your performance, your resilience, and your long-term health," emphasizing it is for "restoring and optimizing" capabilities and protecting longevity, rather than "artificial enhancement."
However, medical experts have raised significant concerns. The Endocrine Society, a professional organization of hormone specialists, released a statement noting "insufficient evidence to support a general recommendation to perform population-level screening for hypogonadism in asymptomatic men." Professor Bradley Anawalt, chief of medicine at the University of Washington Medical Center, described the announcement as a "big fat 'Oh, no'" and expressed worries about the ethics, health consequences, and potential for unnecessary evaluations and incorrect prescriptions of testosterone.
Anawalt explained that while certain genetic conditions or pituitary problems can cause low testosterone, these are uncommon. Many other factors, including cancer treatments, medications, obesity, stress, and aging, can also lower testosterone levels, and these may not warrant testosterone replacement therapy. Symptoms of true hypogonadism can include low libido, erectile dysfunction, and mood changes, but Anawalt cautioned that vague symptoms like fatigue or low energy are not specific indicators of testosterone deficiency in the general population.
Furthermore, the accuracy and interpretation of testosterone tests can be problematic. Anawalt highlighted issues with non-certified assays and nonstandard reference ranges, which can lead to misdiagnoses. He also noted that hormone levels fluctuate and testing should ideally be done in the early morning, with repeat tests recommended for confirmation. The distinction between total and free testosterone is also critical, as some individuals with low total testosterone may have normal free testosterone levels, particularly those who are overweight or have diabetes.