Most women show no symptoms, according to Planned Parenthood. Gonorrhea causes serious infections in women's fallopian tubes which can lead to sterility. Infected men have a thick yellow discharge, if they have symptoms at all. Because gonorrhea might not produce symptoms, people must be tested for the disease. Herpes One in every six people have herpes, according to Planned Parenthood.
Most people know herpes as the common cold sore, which is simplex one.
Simplex two is genital herpes. Both simplexes are spread by direct skin contact. Herpes spreads through contact with the genitals from an infected person or when genitals are in contact with the mouth of an infected person. You may not have any symptoms during a first-time infection. The first outbreak is usually the worst.