Since gonorrhea can occur without symptoms, all sexually active adolescents should be screened for the gonococcus organism during checkups. Hidden infections in women can lead to pelvic inflammatory disease. In recent years, chlamydia a disease caused by a bacteria-like intracellular parasite has emerged as the most common sexually transmitted disease. Chlamydia can cause infections of the urinary and genital tracts of men and is responsible for cervicitis, pelvic inflammatory disease, and fertility problems, including an increased risk of tubal pregnancies, in women. Some warts are highly visible, resembling small cauliflower-like growths, but others are very small or hidden inside the vagina or penis.
Warts are highly infectious and linked to an increased risk of cervical cancer.