Acetowhitening of the vulva has been related to a subclinical human papillomavirus (HPV) infection. No consense has been reached about undertaking -or not- any therapy for these acetowhite changes. We have observed from our clinical experience and in a 10 years observational follow-up, that acetowhitening of the vulva regarding high risk (16-18) and low risk (6-11) HPV groups (as assessed by PCR analysis) significantly decreased; and acetowhitening areas negative to polymerase chain reaction (PCR), significantly increased from 53% (202/382) to 85% (276/325) (P<0.001). Our findings suggest that independently from HPV type and in the absence of cofactors, there is a statistically significant spontaneous remission of these areas.