After reading mostly the comments, on here. I too have very low testosterone, and no sperm, found out today, I will never be a father, and been looking forward to having kids. It's sooo heart breaking, I've always lived a healthy life, never smoked and exercise, I always thought my [balls] were small but didn't think it would affect me having children, and it has. I say to anyone out there get checked as soon as possible, Doctor is talking about surgery to find if there is sperm in my balls, but say its very low chance, Has anyone had the surgery? and if so any Luck?