Dear Prudence,
When my son was a small child, he suffered a playground accident that resulted in an injury that may have affected his chances of ever fathering a child. Because he was so young at the time, he retained no memories of the accident and subsequent operation and hospitalization. When he was growing up, I saw no reason to remind him of the incident, and the subject never came up at all. Now he is 30 years old and working very happily as a teacher. He loves children, and has been very clear from his adolescent years that he intends to have a family of his own. Recently he met and fell in love with a colleague who feels exactly the same way, and the two are planning to marry within the next year. They also plan to start making babies soon afterward. They are very excited about this. My question is, should I tell them now about his potential issues, or should I let them find out for themselves (a process that could take years)? And if I tell them, how do I broach the subject after all these years?