Covers how to test testosterone accurately, including which labs to order (total, free, SHBG, LH/FSH) and when to test for reliable results. Learn how to interpret numbers in context so you can make smarter decisions about symptoms, TRT, and performance goals.
The essentials for testosterone testing — then explore the latest posts below.
Accurate testosterone measurement in men requires a morning serum (blood) testosterone test using validated lab methods, confirmed on at least two separate days before diagnosing “low T.” Here’s how timing, test type (total vs free), and common at-home kits can skew results and lead you toward the wrong next step. “If you get testosterone testing ...
Clinically significant testosterone deficiency is diagnosed only when ongoing symptoms like fatigue, low libido, and “losing your edge” occur alongside consistently low early‑morning testosterone on repeat blood tests (the AUA/EAU “two‑key” rule). Because these signals can mimic stress or normal aging, here’s how to recognize the hormone-driven pattern and what to do next to get ...
TRT is typically appropriate when a man has consistent symptoms of hypogonadism and repeat morning labs show total testosterone below about 350 ng/dL (≈12 nmol/L), with free testosterone below 100 pg/mL (≈10 ng/dL) helping confirm borderline cases. This guide walks you through getting tested locally, interpreting results with a clinician, and fitting testosterone into a ...