Sexually transmitted infections (STIs) are among the most common cause of illness in the world and have far-reaching health, social and economic consequences for many countries. STIs remain a public health problem of major significance in most parts of the world. Failure to diagnose and treat STIs in an early stage may result in serious complications and sequelae, which includes infertility, fetal wastage, ectopic pregnancy, anogenital cancer and premature death, as well as neonatal and infant infections.