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Normal testosterone levels in men by age

Testosterone Levels in Men by Age Chart Explained

As a man, understanding your testosterone levels is crucial for maintaining optimal health and well-being. Testosterone is the main sex hormone in males, responsible for a wide range of functions, including muscle growth, hair growth, and sexual development. But did you know that testosterone levels can vary throughout your life?

That’s right, testosterone levels change as you age, with different ranges seen in infants, children, adolescents, and adults. It’s important to know what is considered normal testosterone levels for men in order to assess whether your levels are within the healthy range.

Fortunately, there is a helpful chart that outlines the average testosterone levels by age for males. This chart can serve as a useful reference to understand where your testosterone levels should be at different stages of your life.

Key Takeaways:

  • Testosterone is the main sex hormone in males and is responsible for various functions including muscle growth and sexual development.
  • Testosterone levels vary throughout a person’s life, with different ranges seen in infants, children, adolescents, and adults.
  • Monitoring testosterone levels is crucial for maintaining optimal health.
  • Low testosterone levels in men can lead to health problems and symptoms.
  • There is a chart that outlines average testosterone levels by age for males.

Testosterone Levels in Infants, Children, and Adolescents

Testosterone levels in infants and children are relatively low, with levels increasing during puberty. In males, testosterone levels start to rise between the ages of 12 and 13, and peak between the ages of 15 and 16. In females, testosterone levels remain low throughout childhood and adolescence. It is important to monitor testosterone levels during these stages of life to ensure proper development and identify any abnormalities or deficiencies.

During infancy and childhood, testosterone levels in both boys and girls are significantly lower compared to adults. As children grow, testosterone production increases gradually. However, it is important to note that testosterone levels in children are still considerably lower than those seen in adolescents and adults.

Puberty is a critical phase where testosterone levels take a significant leap. In males, the increase in testosterone levels during puberty leads to the development of secondary sexual characteristics such as facial hair, deepening of the voice, and the growth of muscles and genitalia. On the other hand, females experience a smaller increase in testosterone levels during puberty, contributing to the growth of pubic hair and enhancing bone density.

Monitoring testosterone levels during adolescence is crucial to ensure proper development and evaluate any potential hormonal imbalances. Abnormal testosterone levels during this phase can have a profound impact on physical and emotional well-being, including delayed or precocious puberty, mood swings, and impaired sexual development. Early detection and intervention can help address these issues effectively.

Testosterone Levels in Adult Males

Testosterone levels in adult males can vary, but it is important to understand what are considered normal testosterone levels in males. On average, normal testosterone levels typically fall within the range of 240 to 950 ng/dL. However, it is crucial to note that testosterone levels can decline as men age.

For men between the ages of 40 and 49, testosterone levels usually range from 252 to 916 ng/dL. Once men reach the age of 50, testosterone levels can decrease even further, ranging from 215 to 878 ng/dL. These lower testosterone levels are often associated with the natural aging process.

Low testosterone levels in adult males can lead to a range of symptoms including low sex drive, erectile dysfunction, fatigue, and muscle loss. It is important for men to be aware of these symptoms and consult with a healthcare professional if they suspect low testosterone levels.

Testosterone replacement therapy is a treatment option that can help increase testosterone levels in adult males and alleviate these symptoms. This therapy involves the administration of testosterone through gels, injections, or other methods to restore hormone balance in the body. However, it is important to note that testosterone replacement therapy should only be used under the guidance and supervision of a qualified healthcare professional.

Age Range Testosterone Levels (ng/dL)
20-29 240-950
30-39 252-916
40-49 215-878
50+ 215-878

It is important for adult males to monitor their testosterone levels and seek medical advice if they experience any symptoms of low testosterone. A healthcare professional can conduct a blood test to measure testosterone levels and determine the most appropriate course of action.

testosterone levels in adult males image

In conclusion, understanding normal testosterone levels in adult males is crucial for overall health and well-being. By staying informed and seeking appropriate medical care, men can optimize their testosterone levels and address any deficiencies or imbalances to improve their quality of life.

Testosterone Levels in Adult Females

Testosterone levels in adult females are significantly lower than in males, with normal levels ranging from 8 to 60 ng/dL. However, it is important to recognize that testosterone still plays a vital role in female health, including hormonal balance, bone density, and supporting sex drive and fertility.

testosterone levels in adult females

Women with low testosterone levels may experience symptoms such as fatigue, muscle weakness, irregular periods, and reduced sexual satisfaction. These symptoms can have a significant impact on a woman’s quality of life. Therefore, it is crucial to address low testosterone levels in females.

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“Testosterone, even in low levels, is essential for maintaining overall wellbeing in adult females.”

Treatment options for low testosterone in females may include medication or lifestyle changes. Hormone replacement therapy might be recommended by healthcare professionals to restore testosterone levels and alleviate symptoms. Additionally, adopting a healthy lifestyle, including regular exercise and a balanced diet, may also support testosterone production in women.

Effects of Low Testosterone Levels in Females

  • Fatigue
  • Muscle weakness
  • Irregular periods
  • Reduced sexual satisfaction


Understanding the normal testosterone levels by age is crucial for maintaining optimal health and well-being in both men and women. Testosterone plays a significant role in various aspects of our physical and emotional development throughout life. By monitoring and addressing any deficiencies or imbalances in testosterone levels, individuals can take proactive steps towards improving their quality of life.

For individuals with low testosterone levels, testosterone replacement therapy can be a viable treatment option. However, it is important to consult with a qualified healthcare professional to determine the best course of treatment for each individual’s specific needs. Working closely with a healthcare professional ensures that the treatment plan aligns with one’s overall health goals and minimizes any potential risks.

Maintaining optimal testosterone levels is not only crucial for physical health but also for emotional well-being. Imbalances in testosterone levels can lead to a variety of symptoms, including decreased sex drive, fatigue, muscle loss, depression, and mood swings. By addressing these imbalances, individuals can improve their overall quality of life and regain a sense of vitality and well-being.

In conclusion, understanding the normal testosterone levels by age empowers individuals to take control of their hormone levels and make informed decisions regarding their health. Regular monitoring of testosterone levels, seeking appropriate medical advice, and considering treatment options when necessary can help individuals maintain a healthy balance and enjoy the benefits of optimal testosterone levels throughout life.


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I've been fascinated by natural male hormone optimization since 2016. And ever since I've been going through boatloads of different meta-analyses and scientific data associated with increasing testosterone levels naturally. I hold a PhD degree in public health and have 10+ scientific publications on Google Scholar. Thus, in my collective work here you'll find helpful tricks, natural remedies, detailed product reviews (including stuff I've personally tried)... and more!

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Although I'm a Ph.D., I'm not a medical doctor. The content on this websites is meant for educational and informational purposes only, it's not medical advice. The information and other content found on this website is not a substitute for professional medical expertise or treatment.