Gonorrhea Gonorrhea is an STD caused by the bacteria Neisseria gonorrhea. The bacteria can infect the cervix, urethra, throat, rectum, and eyes. Women tend to have a lower incidence of symptoms than men do. Syphilis Syphilis is an STD caused by the bacteria Treponema pallidum. Syphilis infection is divided into three stages, each with a different set of symptoms.
Primary syphilis is the most contagious stage of the disease.
There is usually one sore and it is painless. It can develop on the genitals, near the rectum, in the mouth or throat, or on the tongue or lips. Secondary syphilis symptoms vary greatly in appearance and may or may not be noticeable. Tired, listless feeling. Latent syphilis is the stage in which no obvious signs or symptoms are present to suggest infection, yet blood tests for syphilis are reactive.