Testosterone
One reading cannot show low testosterone.
A commonly used lower limit for total testosterone in adult men is about 300 ng/dL (10.4 nmol/L). A diagnosis of low testosterone needs two low morning readings plus symptoms.
| ng/dL | nmol/L |
|---|---|
| 300 | 10.4 |
| 500 | 17.3 |
| 1000 | 34.7 |
- AUA — Evaluation and Management of Testosterone Deficiency (2018)
- Endocrine Society — Testosterone Therapy in Men with Hypogonadism (2018)
General information only; not diagnosis or treatment. Review your results with your clinician.
