Today, professionals use the terms STD (sexually transmitted disease) or STI (sexually transmitted infection) to discuss infections that are transmitted from one infected person to another through vaginal sex, anal sex, oral sex or through close intimate sexual contact. The term “STI” is used more often because people can have an infection without it actually turning into a disease.
DIAGNOSIS OF STIs
Etiologic diagnosis based on laboratory testing: Preferred and most accurate method to identify specific pathogens so that appropriate treatment can be given.
Presumptive etiologic diagnosis based on clinical findings: Depends on specificity and positive predictive value of signs and symptoms for particular infections and expertise of a clinician.