In this paper we approach three clinical syndromes with different microbial agents that cause sexually transmitted diseases (STD) with a common condition: the symptomatology is in the genital area. Some of these microbial agents are transmitted strictly sexually, but not all. In this section we will discuss about vulvovaginitis, genital ulcers and human papilloma virus, three syndromes which have increased their incidence in recent years and primary care must know its management: diagnosis, correct treatment, controls, and study of sexual contacts. The optimal approach is as important as knowing how to recommend prevention of STD, contact study and screening for other infections that can be present at the same time although asymptomatically.