Bomar Disease
A disease that 50% of women carry that has laid dormant for over 2,000 years.  Just recently in 2004 the first transmission from women to male was documented.  The disease gets into the males genital region creating a rash with purple spots that sometimes contain puss.  The disease is very harmful and caution must be taken.  Some cases have resulted in the penis "falling off" or a mental state where the male believes such has happened.
Sally, unknowingly, gave Brad Bomar Disease and now Brad's doctor says he needs surgery for his genitals.