The concept of neutrosophic soft set is a new mathematical tool for dealing with uncertainties that is free from the difficulties affecting existing methods. The theory has rich potential for applications in several directions. In this paper, a new approach is proposed to construct the decision method for medical diagnosis by using fuzzy neutrosophic soft sets. Also, we develop a technique to diagnose which patient is suffering from what disease. Our data with respect to the case study has been provided by the a medical center in Ordu, Turkey.