A hormone produced by the male testes, testosterone is primarily responsible for the development of male sexual characteristics and has a role in secondary sexual characteristics. It also promotes hair growth, fat distribution, and muscle growth. In women, it plays a smaller role in the development of female traits like breasts and body hair. Testosterone levels in men & women are important to understand because they can affect many aspects of their physical health.
The charts below reflect the average testosterone levels for male and female patients, expressed as Free Testosterone Levels.
Average Testosterone Levels by Age – Male Patients