Paper aims to review contemporary possibilities of diagnostics of classical venereal diseases (syphilis, gonorrhea, lymphogranuloma venereum, ulcus molle) and reminds current mandatory rules of law and guidelines of the Ministry of Health of the Czech Republic, which are forming part of the Czech legislature from 1922.

        Key words: STI - venereal disease - diagnostics - syphilis - gonorrhea - ulcus molle - lymphogranulo¬ma venereum