The screening applies to every active-duty and reserve service member age 30 and older, a population of about 2 million. But the guidance the Defense Health Agency issued this week says the numbers to be screened, tested, diagnosed and treated "are not currently known," and no prior guidance projected them.
The Pentagon posted new guidance on Thursday for mandatory testosterone deficiency screening among male service members over age 30 in active duty or in the reserves.
Newly updated guidelines would test male service members aged 30 and over for low testosterone. Rules for females will be released later, officials said.
The War Department released clinical practice guidelines for medical professionals across the force on how to evaluate and treat potential testosterone deficiencies in male warfighters.
The screenings, which look for testosterone deficiency, will be added to a fighter's annual health assessment and men under 30 can choose to be tested but are not required to.