A member asked:

When does my son start to get facial hair?

A doctor has provided 1 answer

Variable.: http://www.ncbi.nlm.nih.gov/pubmed/21133972 pubic hair development is more predictable, but facial hair depends not only on testosterone levels, but also on levels of the enzyme 5-alpha-reductase in the skin, and that varies from family to family.

Answered 10/28/2013

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