Patients with multiple sexual partners are at high risk for sexually transmitted infections. The use of a condom during vaginal or anal sex, and a dental dam during oral sex, can protect an individual against STIs by preventing contact with body fluids or an infectious lesion.
One STD puts patient at high reisk of another STD hence screening is indicated,
Pelvic inflammatory disease (PID)
Vaginitis from tichomonaisis is considered an std