A testosterone level of 300–400 ng/dL may be labeled “normal”—but what does it mean in a symptomatic man in his 20s, 30s or 40s? A urologist explains testosterone cutoffs, age-specific data, free testosterone and when further evaluation makes sense.

Starting testosterone is only the beginning. Learn what good TRT monitoring should include, from testosterone levels and hematocrit to estradiol, prostate health, fertility, dosing, and metabolic health.

Fatigue, low libido, poor recovery and changes in body composition can point toward low testosterone, but they can also have other causes. Learn how sleep, stress, metabolic health and other factors fit into a complete men’s health evaluation.

A testosterone result can fall within the laboratory reference range while still being low compared with healthy men your age. See age-specific total and free testosterone values, percentile data, and why symptoms and proper evaluation matter for men in Anderson, Indiana.