Is it a condition to secure a job before marriage for someone who fears infertility due to varicocele, even though he has housing and transportation? And should the fiancée be informed about the varicocele, and when?

It is not a prerequisite to acquire wealth for marriage; rather, it suffices to have enough for the expenses of marriage and to fulfill the obligatory rights of the wife. Marriage itself can be a cause for richness. As for the defects that must be disclosed before the engagement and that establish the right to annulment, these are conditions that prevent intercourse, or perfect enjoyment, or repulsive and contagious diseases. If a disease does not entail any of these consequences, then there is no obligation to inform the prospective wife about it.