At puberty: Spermatogenesis begins with puberty. In the US, the average age for starting puberty for boys is around 10-11yo.
Answered 10/21/2015
2.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
8 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question