What is s.t.i?

STI = STD: STI usually stands for sexually transmitted infection, same as sexually transmitted disease, or STD. The main STIs are chlamydia, gonorrhea, syphilis, trichomonas, gential herpes, genital human papillomavirus (HPV), and HIV (the AIDS virus). There are several others as well, mostly minor or uncommon.

Sexually Transmitted: STI (Sexually Transmitted Infection) would typically be another way to refer to a STD (Sexually Transmitted Disease) or VD (Venereal Disease). Terminology has changed over time but is essentially the same thing.

STI: These are sexually transmitted diseases like chlamydia , gonorrhoea, syphillis , HIV etc .