A Pap smear (Pap test) is a medical procedure to screen for abnormal cells of the cervix. A woman should have her first Pap smear (in general) three years after vaginal intercourse, or no later than 21 years of age. The risks for women at increased risk for having an abnormal Pap smear include: HPV (genital warts), smoking, a weakened immune system, medications (diethylstilbestrol), and others. Some of the conditions that may result in an abnormal Pap smear include: absence of endocervical cells, unreliable Pap smear due to inflammation, atypical squamous cells (ASCUS), low-grade squamous intraepithelial lesion (LSIL), high-grade squamous intraepithelial lesion (HSIL), cervical intraepithelial neoplasia (CIN), and carcinoma in situ. Read more: Pap Smear Article
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