Testosterone is the main male sex hormone (also present in smaller amounts in women). It is tested for low libido, fatigue, fertility and hormonal symptoms.
| Measure | Range |
|---|---|
| Total testosterone (men) | ≈ 300–1,000 ng/dL |
| Total testosterone (women) | ≈ 15–70 ng/dL |
Usually a morning sample, as levels are highest then and vary through the day. Two low morning readings are typically needed before diagnosing low testosterone.
Ageing, obesity, chronic illness, certain medicines, and problems of the testes or pituitary. The cause guides whether and how it is treated.
MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.