Why you don't really have to worry about it. According to science.
By Stacey Grenrock Woods
Q: Do steroids affect sperm count?
Someday I want to have children with my boyfriend...but I’m concerned. He’s short, very muscular and he used to take steroids when he was younger (not anymore). Could his previous steroid use affect his sperm count and make him infertile? Also, his penis tilts to the side. Should I worry?
You’ve asked some good questions and you’re right: anabolic steroids can temporarily lower sperm counts and could potentially cause problems with fertility.