[Problems concerning diseases of internal organs (medico-biological aspect)].

This review considers the views of I.V. Davydovsky expounded in his book The Problems of Causality in Medicine. Etiology (1962). The author was the first to apply the philosophical method to address such fundamental medical concepts as etiology and pathogensis. The most important issues concerning diseases of internal organs are reviewed with special reference to their etiology; an attempt is undertaken to further develop and update them.