Sexually transmitted infection/coinfection with Chlamydia trachomatis and Neisseria gonorrhoeae is responsible for pelvic inflammatory disease, ectopic pregnancy, infertility, neonatal conjunctivitis, and adhesive perihepatitis. The increase in the rate of chlamydial and gonococcal infection/coinfection has been related to promiscuity, inadequate use of mechanical contraception (condom), early sexual activity, and lack of proper sexual education. Therefore, the need of primary prevention and education of the young population, and introduction of amplification screening tests in the diagnosis of chlamydial infection at least before each intrauterine procedure, in women with mucopurulent discharge and in women below age 25 is emphasized.