Isn't there a high turnover rate for female pornstars? I hear the average length of career for female pornstars is like only 2-3 years. This is just my opinion but I think many choose to quit because they don't make it famous enough, get burnt out, or shot themselves out and don't get book for jobs often enough. I'm no expert  but I would assume only HIV and Hepatitis C would stop a male or female performer from being able to have straight sex in the industry. All other STDs cannot necessarily be cured but it can be controlled or subside breakouts with medicine. I don't think they have some secret contagious disease they are hiding but I could be wrong.