Annual HIV screening is suggested for everyone ages 13 to 64
Men who have sex with men run a higher risk of acquiring STIs. Many public health groups recommend annual or more frequent STI screening for these men.
If you have HIV, it dramatically raises your risk of catching other STIs. Experts recommend immediate testing for syphilis, gonorrhea, chlamydia, hepatitis C and herpes after being diagnosed with HIV.
Before having vaginal or anal intercourse with new partners, be sure you've both been tested for STIs.
It's also possible to be infected with an STI yet still test negative, particularly if you've recently been infected.