symptom of sexually transmitted disease

Get the basics about STIs: who gets them, why they are important, and how to protect yourself. Also learn about the most common STIs.

Learn more about chlamydia, one of the most common – and treatable – sexually transmitted infections.

Get facts and personal stories about herpes, a sexually transmitted infection (STI) caused by a virus that lives in the nerves.

Get fast facts about gonorrhea, a common sexually transmitted infection.

Learn about syphilis, a treatable sexually transmitted infection that can lead to severe illness if left untreated.