well maybe i dnt know. he cums in me everytime though so you would think he wouldnt be lien. unless he wants a kid....
I think there is no good answer to give about this on the Internet. A person would have to be a doctor and know exactly what it is that happened to your boyfriend, to be able to tell if he can grow out of it.
Were you there when the doctor said this? How was it diagnosed, by sperm count? It's hard to imagine a childhood injury that would make someone sterile. Are you sure your boyfriend isn't just telling you this in order to have unprotected sex?