Although gonorrhoea and syphilis are the better known of the sexually transmitted diseases, attention has been drawn to the other sexually transmitted diseases caused by bacteria, viruses, fungi and parasites. Although statistics are not available in most developing countries, herpes genitalis has been suggested as commoner than syphilis as a cause of genital ulceration while non-specific urethritis is commoner than gonorrhoea as a cause of urethritis. The incidence, clinical features and diagnostic procedures of syphilis, herpes genitalis, non-gonococcal urethritis, lymphogranuloma venereum and trichomoniasis have been briefly discussed. The management of these conditions in developing countries have been outlined.