A member asked:

What causes male infertility if they already had a child?

A doctor has provided 1 answer

Many things...: Sperm is produced new in the testicles about every 10 weeks. Over time, things can change. Age can affect sperm over time, as can something called a varicocele. Reproductive toxins in our food, water, air, and workplace can also cause sperm to deteriorate over time. I hope this helps!

Answered 7/11/2017

5.8k views

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