male fertility help

Star • Eden Mae Bradleigh💕 Ivy Remington Rae💕 US Army Field Artillery 🇺🇸 Gestational Surrogate 🤰🏼
I have a friend who isn't fertile. Him and his wife have been trying for quite awhile to have a baby, but no luck. He got tested and they said he isn't fertile. I know there's ways he can try to get it up, so does anyone have any suggestions?