Hello. Thank you for writing to us at healthcaremagic Human papilloma virus (HPV) infection is an STD. It is the cause of genital warts. The infection can remain asymptomatic for weeks or months before one develops visible warts Or is discovered positive via Pap smear and in someone who has multiple sexual partners in the past, it may be difficult to delineate the exact source of infection. It is possible that anyone of you may already have had the infection before. In females infection with Hpv can be detected by a Pap smear and checked for viral DNA, however, there are no tests approved for detecting asymptomatic carriers in males. Thus there is no way to know that a male carries the infection unless of course he develops a visible lesion. Therefore it is hard to tell whether he gave the infection to you Or you gave the infection to him. If your last Pap smear, before you starting dating your current boyfriend stood as negative, it is very likely that he gave the infection to you! rather than the other way round. Regards