Health Experts Warn of Fertility Risks from US Military's New Testosterone Plan

The US military's new policy, announced by Defense Secretary Pete Hegseth on July 15, 2026, mandates annual testosterone deficiency screenings for service members aged 30 and older, with younger personnel having the option to be tested. The initiative aims to ensure troops maintain optimal testosterone levels for peak performance, longevity, and military readiness, with those identified as deficient offered voluntary testosterone replacement therapy (TRT).

However, medical professionals are voicing significant concerns, particularly regarding the potential impact on fertility. Doctors warn that testosterone replacement therapy can suppress the body's natural sperm production, leading to impaired fertility, which is a critical "unintended consequence" for service members planning to start or expand their families.

Beyond fertility issues, health experts highlight other risks associated with TRT, including an increased likelihood of blood clots, pulmonary embolisms, and kidney injuries due to elevated red blood cell production. National medical organizations, such as The Endocrine Society and the American College of Physicians, advise against routine testosterone screenings for asymptomatic individuals, citing that normal testosterone levels are not performance-enhancing and the policy lacks robust scientific backing.