Introduction: Globalization, automation, computerization and other processes of modern life made from our modern life style a danger. Nowadays, diseases caused by stress are the main causes of death. Suicide became a disease of modern life style and in the same time a problem of public health, being the 11th cause of death rate in the world and the second cause of death rate among the human beings aged 25-34 years old. Aims: The goal of our research was to evaluate the characteristics and the etiology of this phenomenon from the health and social position. The objectives included both the study and the analysis of the bibliographical research. Methods: In this research we based on the information from The National Bureau of Statistics, which included information from the official documents (reports) and some information from the researches in the domain. Results: The number of suicides in 2002 in the Republic of Moldova was 16.09‰ per 100 000 inhabitants and in 2009 it was 18.26‰. This growth of 2.17‰ denotes that human beings who committed suicide are more numerous by 74 than in 2002. In 2009, 651 persons committed suicide (32.43‰ men and 5.13‰ women) in the Republic of Moldova. In urban regions 22.33 men per 100 000 inhabitants and 4.09 women committed suicide, in rural localities 39.31 men per 100 000 inhabitants and 5.89 women. The predominant ages in men committing suicides are: 1)50-59 years-old; 2)40-49 years old; 3)60-64 years old. The predominant ages in women committing suicides are the following: 1)50-59 years old;2) 65 and over; 3)40-49 years old. The teenagers maintain an increased rate, if in 2005 173 teenagers committed suicide then in 2009 146 teenagers committed suicide, the figure decreased by 27 persons. The causes of suicide, depending on age group: 1)Minors up to10 years old- school stress, family breakdown, 2) 10-14-family breakup, school failure, fear of punishment, abuse of parental authority, 3) 15-18 year-depressive conditions, conflicts with parents, and their loss. Conclusion: The suicide became a problem in the public health because it is an increasing trend in the human being’s life. Each age has its reasons for people`s suicide. We need a classification of causes for each group of age for choosing the correct methods of settlement of this phenomenon.