Frequency of abnormal Pap smear in patients presenting with postcoital bleeding in Tertiary Care Hospital, Karachi, Pakistan.

Postcoital bleeding increases the chance of detecting cervical dysplasia and cancer; and the Pap smear is the recommended screening test in these patients. We conducted a cross-sectional study that included 110 women to find out the frequency of abnormal Pap smear in such patients. Their age range was 15-65 years with a mean age of 31.2 ± 11.2 years. Abnormal Pap smear was found in 54 (49%) women. Atypical squamous cells of unknown significance (ASCUS) were found in 13.6%, low-grade squamous intraepithelial lesion (LSIL) in 20.9%, high-grade squamous intraepithelial lesion (HSIL) in 11.8% and carcinoma in 2.7% of those. Because of the high frequency of abnormal Pap smear associated with postcoital bleeding in our population, cervical screening and strict monitoring are suggested as the important screening indications.