Stakhanov Kiril. Post-schizophrenic depression – problematic diagnosis. Journal of Education, Health and Sport. 2015;5(7):661-668. ISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1040967 http://ojs.ukw.edu.pl/index.php/johs/article/view/5008 Deklaracja. Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie. Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r. The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014). © The Author (s) 2015; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 20.06.2015. Revised 15.07.2015. Accepted: 25.07.2015. POST-SCHIZOPHRENIC DEPRESSION – PROBLEMATIC DIAGNOSIS Kiril Stakhanov Odessa National Medical University e-mail: psyhotip@gmail.com Summary The problem of depression in schizophrenia is one of the most urgent in modern psychiatry, but there is still no generally accepted approach to both the diagnosis of these conditions and to practical recommendations for optimizing therapeutic approaches. Therefore, this work of the author is devoted to the analysis of the scientific and theoretical substantiation of the problem of post-schizophrenic depression (PSD). The methods were analysis and synthesis of existing scientific-theoretical and experimental research in the field of PSD. The purpose of the study was to analyze the existing scientific achievements in the field of psychiatry, psychology and medicine to clarify all clinical and diagnostic aspects: the etiology of pathogenesis; clinics; definition and nosological qualification of the PSD. Since the volume and content of PSD as an independent diagnostic category, first identified in the ICD-10 (1994) in the section "Schizophrenia," does not allow comprehensive clarification of all clinical and diagnostic aspects, but only actualizes the issue of their: the etiology of pathogenesis; clinics; definition and nosological qualification. The solution of these issues is closely connected with the clarification of the clinical and psychopathological content of schizophrenia as a nosological unit and the improvement of its taxonomy; hence the study of the PSD is becoming increasingly relevant in the modern period. Key words: schizophrenia, schizophrenic disorders, depression, post-schizophrenic depression, comorbid depression, pathogenesis.