Venereal

... Heavy smokers and people taking therapeutic or recreational drugs should not use their own urine. Those suffering from bladder infections or venereal disease are also advised against ingesting their urine.

See entire post

... lower prevalence of AIDS. Why? because circumcision allow better hygiene of this part of the male body, and hence decrease the prevalence of some venereal diseases tht makes you more prone to catch AIDS. Of course a good personal hygiene is as good as circumcision, but in some parts of the world, ...

See entire post