What Is Average Testosterone Level By Age?

Aging has its impact on almost all the systems in the human body, whether cardiac, respiratory or integumentary. Reproductive system is not an exception. As the age increases, vital processes of the reproductive system start declining. The impact may be directly on the organs or the organs which are controlling them are affected.

Reduction in the level of testosterone with age is one such phenomenon which shows a variety of symptoms involving both physical and psychological aspects.

What Is Average Testosterone Level By Age?

Age is a major factor in lowering the concentration of testosterone in blood. This condition is known as late-onset hypogonadism. In this condition, the hypogonadism is due to both primary as well as secondary and the increase in Sex Hormone Binding Globulin also reduces the concentration of free testosterone. Testosterone is present in both male and female and as it is a male dominating hormone responsible for masculine characteristics, the concentration of testosterone in male is higher as compared to female.

The average testosterone level in adult male ranges from 250 to 1000 ng/dL while is adult female the average testosterone level ranges from 10-60 ng/dL. The level of testosterone increases till the age of 19 and later on started decreasing with age. Due to reduction in the average testosterone level at later stage, the risk of Alzheimer’s increases, bones becomes brittle and the person feels fatigue and lower in energy.

Following Table shows the concentration of average testosterone level by age:

Age (Years) Total Testosterone (Conc.)
25-34 670
35-44 620
45-54 606
55-64 560
65-74 525
75-85 475
85+ 375

Further, as the age increases, average testosterone level decreases and the concentration of Sex hormone binding globulin increases.

Late-Onset Hypogonadism

Symptoms Of Hypogonadism

Testosterone is said to be a male dominating hormone; thus, any deficiency of this hormone impacts the person on both physical and psychological front. Following are the various symptoms associated with low level of testosterone:

Low Sex Drive– Low testosterone leads to low sex drive and reduced libido.

Reduced Body Hair And Delayed Puberty– As testosterone is responsible for masculine features, it’s deficiency may cause reduced body hairs and delayed puberty.

Abnormal Development Of Sperm- Deficiency of testosterone may cause reduced production of sperms and also the quality of the sperm produced is not optimum for its fertilization with egg leading to male infertility.

Other Symptoms- The other symptoms related to low testosterone level includes low muscle mass and non-deepening of voice.

Conclusion

As the age increases the average testosterone level reduces. This phenomenon is termed as late-onset hypogonadism. This may be due to reduced synthesis and secretion of testosterone from testes or reduction in the trigger mechanism from pituitary. The concentration of average testosterone level is further reduced by increase in concentration of sex hormone binding globulin.

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Team PainAssist
Team PainAssist
Written, Edited or Reviewed By: Team PainAssist, Pain Assist Inc. This article does not provide medical advice. See disclaimer
Last Modified On:November 19, 2018

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