I've heard enough stories and seen sufficient Pakistani dramas and Indian movies where the husband is impotent and doesn't want to undergo treatment because it's a pride issue. The "impotency" is seen as a sign of being "less manly." Some husbands who hold such a view will go as far as denying their impotency and blaming the wife for having fertility problems....and ironically the women are more open to seeing a doctor about the issue. (not saying ALL desi guys back home are like this).
In stories the story teller or story writer does not give options to the character. In drama and Indian movies the producer does not give choices to their actors.
But in real life husband and wife have a choice to keep all this personal and do not have to announce that husband is being treated for impotence. If he and she do not tell anybody about that treatment then there nobody will know.