Disorders of penis development are on the rise and we're not sure why (News Source: ABC Australia)https://www.abc.net.au/news/2019-02-15/disorders-of-penis-developement-are-on-the-rise/10812360
Penis disorder rates are on the rise, and doctors aren't sure why.
In prenatal ultrasounds or at delivery, many new parents look between their baby's legs: the presence of a penis is taken as a strong sign that it's a boy.
You need more than just testes to make a penis (News Source: The Conversation)https://theconversation.com/you-need-more-than-just-testes-to-make-a-penis-111625
Testosterone is primarily made in the testes, and creates many of the characteristics we see in adult men.