Chlamydia and Gonorrhea infections are among the most commonly reported bacterial STD's in the United States. Often times there are no symptoms present, however, if left untreated these infections can cause serious and permanent health problems in both men and women.
Genital Herpes infects one out of five Americans over the age of 12. There is currently no cure for herpes. It can cause painful sores that may come back year after year.
Human Papillomavirus (HPV) is one of the most common viral STD's in America. Several studies have shown that nearly half of all sexually active men and women acquire genital HPV infection at some point in their lives. HPV infections can cause genital warts and are linked to cancer of the cervix, mouth, throat, penis and anus.
How do I know If I Have an STD?
Sexual Health -- Sexually Transmitted Diseases (STDs)