The human papillomavirus is a virus with many different strains (approximately 150), some of which are sexually transmitted and cause either genital warts or dysplasia. Genital warts are small benign growths (papillomas) on the skin in the genital area which, although unsightly, are not a serious medical problem. Dysplasia is abnormal cells of the cervix in females, which may be a precursor to cervical cancer.