The article considers main indices characterizing development of medical services sector in regional market of the Krasnodar Kray. The statistical and analytical data, results of questionnaire surveys of residents, expertise results are presented. The conclusions are made concerning problems and perspectives of development of regional health care.The efficiency of quality control of medical care in medical organizations providing medical care in out-patient conditions is inadequate. The purpose of the study is to identify main problems of ensuring quality of medical care in private medical organizations providing medical care in out-patient conditions and to develop suggestions for their elimination. The assessment of medical care quality in private medical organizations network was carried out using expertise technique (n = 1070), intra-organizational attestation (n = 47), questionnaire survey of administrative (n = 28) and medical personnel (n = 241). The total number of medical care defects made up to 4,822, and 97.3% of them were related to diagnosis and treatment. A full justification of diagnosis was recorded in 65.8% of cases. The cases of insufficient and excessive examination have been identified. The non-compliance with duration of treatment and frequency of visits have been established. The inadequate medical efficiency (67.6%) reliably effected on low compliance of patients, recorded in 18.9% of cases (p less then 0.05). The main problems of ensuring medical care quality are related to organization of internal control system, involvement and motivation of medical personnel and development and maintenance of necessary organizational culture. In the private health care sector, quality issues can be solved solely by means of material resources. check details It is necessary to improve of medical personnel management, internal quality control of medical care and management of organizational culture.The article considers medical and pedagogical prevention of deviant behavior of adolescents from dysfunctional families in conditions of rural school, related to the need of strengthening targeted joint interaction of medical and pedagogical institutions. The description and results of testing of diagnostic tools used to establish severity of deviant behavior of children in a selected group is discussed. The interaction of medical and educational institutions in preventing deviant behavior of adolescents from dysfunctional families in rural school is of key importance for combating prevalence of drug addiction, tobacco smoking, alcohol abuse and psychoactive substances consumption, and contributing to physical and mental health promotion of younger generation, development of healthy lifestyle. The study was organized to cover cognitive, behavioral, affective and value-motivational components. The qualitative characteristics of levels of severity of deviant behavior of adolescents from dysfunctional families were developed and proposed for practice application.The article considers domestic violence as a factor of derangement of social and mental health of family members. There is no open access to statistical indices of cases of domestic violence. The data of population mental health is rather conditional. There is no aggregated information on social health of citizens at all. The sociological study of families of the Belgorod region was carried out in January-March 2019. The collection of primary sociological data was done using the questionnaire survey. The respondents consisted of two groups minors and adult family members. The study established that in children-victims of violent actions, recollections remain that negatively impact their social and mental health in the present and future. Most often there is not one type of violence but whole complex. The effect of domestic violence is deterioration not only of mental and social health of victims, but physical (psychosomatic) health too. There is co-dependency of social and mental health conditions of all family members involved into violence actions. In case of domestic violence related to the elderly and disabled ones their social and mental health is deteriorating much faster than in case of similar alterations of age-related or medical causes.The demographic and clinical data of 520 patients with infectious endocarditis treated in 2005-2017 was analyzed with the purpose to assess current trends in epidemiology and approaches to surgical correction of infectious endocarditis. The analysis established increasing of absolute number of patients with infectious endocarditis, their average age and number of female patients. The incidence of early prosthetic endocarditis and its hospital mortality decreased. The study determined increasing of number of emergency interventions, more frequent valve-preserving operations, increasing of number of interventions for perivascular lesions and more frequent application of bioprostheses.The data on prevalence of diseases of non-occupational genesis in persons with occupational diseases that have stopped their labor activity are presented. The purpose of the study was to analyze prevalence of diseases of non-occupational genesis in persons with diagnose of occupational disease working at enterprises and organizations served by health care institutions of the FMBA of Russia. The study uses data from "The Industrial Register of persons with occupational diseases". In the structure of occupational diseases of persons who stopped working the first three places are for "Injury, poisoning and certain other consequences of external causes S00-T98", "Diseases of the respiratory system J00-J99" and "Mental and behavioral disorders F00-F99". The most common were diseases of circulatory system, digestive system and musculoskeletal system with variations in groups of occupational diseases. The high value of "The Industrial Register of persons with occupational diseases" was confirmed. This information permits to to assess health of persons with occupational diseases.Among HIV-infected patients there are individuals with masked chronic diseases that affect life quality and life-span. Their timely detection and treatment can improve life quality of HIV-infected patients. The screening examination allows to establish prevalence level, structure and features of concomitant diseases under HIV- infection to provide timely medical preventive care.