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Testosterone levels in males and females ; Total testosterone Stage Age range Male Female Values SI units Values SI units ; Infant: Premature (26–28 weeks) 59–125 ng/dL: 2.047–4.337 nmol/L
Testosterone is the primary male sex hormone and androgen in males. [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
The free androgen index is intended to give a guide to the free testosterone level, but it is not very accurate (especially in males — see endocrine society commentary below). Consequently, there are no universally agreed 'normal ranges', and levels slightly above or below quoted laboratory reference ranges may not be clinically significant.
The number one thing you want to get tested if you’re symptomatic is your total testosterone levels, which includes all forms of testosterone in your body: unbound free T, SHBG-bound T, and ...
Hone Health reports on the factors responsible for testosterone levels in men and how they are affected by age and lifestyle.
A clinical diagnosis of testosterone deficiency should only be made when patients have low levels of testosterone combined with symptoms and/or signs of low T. Signs and Symptoms of Low Testosterone
Testosterone, total Refs Endocrine Society: United States: 100–200 pg/mL <50 ng/dL [1] World Professional Association for Transgender Health (WPATH) United States "[T]estosterone levels [...] below the upper limit of the normal female range and estradiol levels within a premenopausal female range but well below supraphysiologic levels."
Testosterone levels with 100 to 300 mg/day oral cyproterone acetate and low-dose oral estrogen in men. [11] The estrogen used was 0.1 mg/day diethylstilbestrol (DES), [11] which has been described as an "extremely low" dosage. [12] Levels of testosterone were decreased by about 95% with the combination and by about 61% with cyproterone acetate ...