Frankly an "un" looks like a worm and who wants that comparison? Case closed.
To me, they look more like Mr. Snuffleupagus (the modern version) when soft. When hard, they look basically the same. As someone who was born in a place where circumcision is the norm, uncut penises look odd to you and most men/women born in the same environment. Go to a county where it's rare, and you are the odd one or the novelty with the names attached.
Why exactly was he getting infections I wonder? Did his wife have an asymptomatic case of Bacterial Vaginosis or Yeast Infection (yes, men can get them)? Was he not taught proper care and let bacteria grow? Was he simply susceptible? In any case, there are over the counter treatments and prescriptions just like when my pipes are on the fritz. You just have to know what to look for.
As far as your friend is concerned, his condition is quite rare. If it wasn't, the male population of Australia and the majority of Europe would be in a hell of a shape!