The aim of this paper is to provide a concise portrayal of medical applications of a new fuzzy classification method called PROAFTN, which uses a multicriteria decision aid approach. The method is presented after a brief description of classification methods and the formulation of the problematic. Subsequently, the review summarizes and discusses medical applications of the proposed method in acute leukaemia, astrocytic and bladder tumours. Although still an investigative method, the preliminary results are very encouraging and demonstrate the potential performances of this procedure for solving medical classification problems.