Introduction: Compared to other countries in Europe, Bulgaria is in first place in terms of total mortality and occupies leading positions both in terms of mortality from Covid 19 and other socially significant diseases. During the pandemic, prohibitions were repeatedly introduced to conduct general preventive examinations and examinations for periodic monitoring of the condition of persons with chronic diseases. In addition, people limited visits to their GP due to fear of contagion. The purpose of the present study is to determine the impact of the introduced restrictive measures for prevention among the population during the Covid 19 pandemic on mortality among the population in Bulgaria. Materials and methods: Official data for the period 2018-2021 from the National Statistical Institute in Bulgaria were used, which were processed with statistical Methods. Results: Total mortality increased significantly during the pandemic (compared to 2019, an increase of 28.5% in 2020 and 39.8% in 2021). One of the reasons is the death rate from Covid 19, which in Bulgaria is higher than the average values ​​for European countries. A significant increase in deaths from diseases of the respiratory system and diseases of the circulatory system was found. The growth in mortality from malignant neoplasms, diseases of the endocrine system and mental illnesses is also impressive. During the pandemic, a lower coverage of the population with preventive examinations is reported (below 35%). Conclusions: The pandemic of Covid 19 and its consequences gave a reflection, besides as a direct cause of death among the population, and as an indirect cause of death in persons mostly with chronic diseases. Restrictions on prevention and early detection of diseases, as well as irregular monitoring of chronically ill people is an additional reason for the increased mortality from socially significant diseases. Keywords: Covid 19 pandemic, prevention, mortality, causes