I’ve heard that STIs can’t be cured…is this true?

This is an excellent question, one with an answer that many people struggle to understand.  An STI (short for sexually transmitted infection) is an infection that you can get from having any kind of sex (oral, anal, vaginal) with an infected partner.  An STI can be caused by bacteria, parasites, or a virus.  Some STIs can be cured, while others cannot.