If you are sexually active, especially with multiple partners, you have likely heard the following advice several times: Use protection and get tested. This is important because a person can have a sexually transmitted disease without knowing it. In many cases, no signs or symptoms appear. In fact, that is why many experts prefer the term "sexually transmitted infections" since you can have an infection without showing symptoms of the disease.
HIV + Syphilis + Gonorrhea + Chlamydia + Herpes.