Can you really become sterile if youv'e had mumps?

Answer 1

If you get it later in life. A friend's brother had it in adulthood - made his unit swell up for a bit and left him sterile.

Answer 2

Mumps
Dr Trisha Macnair

Mumps usually affects children and teenagers. When teenagers or adults get the infection it may be more severe - older boys are particularly at risk from orchitis (inflammation of the testes), which can reduce a man's fertility.