Impact of seminal low-risk human papillomavirus infection on sperm parameters of adult men.

We aimed to evaluate the impact of seminal low-risk human Papillomavirus (LR-HPV) infection on sperm conventional parameters. This was a retrospective case-control study including patients attending to our center for infertility. Patients with evidence for high risk (HR)-HPV infection previously or at the time of enrollment, and/or with severe oligozoospermia (sperm concentration <5 mil/ml) were ruled out.