What are the stages of puberty based on testosterone level?

Updated: Nov 30, 2020
  • Author: Paul B Kaplowitz, MD, PhD; Chief Editor: Robert P Hoffman, MD  more...
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The stages of puberty as indicated by serum testosterone levels are as follows:

  • Testosterone level less than 30 ng/dL - Generally prepubertal (Depending on the laboratory, testosterone levels of 20-30 ng/dL may represent early puberty)
  • Testosterone level of 30-100 ng/dL - Early pubertal
  • Testosterone level of 100-300 ng/dL - Mid-to-late pubertal
  • Testosterone level of more than 300 ng/dL - Adult

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