SC Basic Facts About STDs Basic Facts about STDs Chapter 20.
Sexual contact includes vaginal, anal, and oral sex.
Sexually transmitted diseases include chlamydia, gonorrhea, genital herpes, syphilis, and trichomoniasis. So, though mentioned at times, it is not defined here. Unfortunately, early stages of STDs often have no detectable symptoms. In addition, you can also have more than one STD at the same time. Gonorrhea and chlamydia, for example, are often picked up at the same time.