Adolescence is a critical age of change and experiencing, so the influence of social factors in it is very important. The main focus of this research is precisely the elaboration of a negative phenomenon that is very expressed to Kosovar youth, such as smoking. The purpose of the paper is to present how much smoking is present, the factors that influence how much they are aware of the damage they cause, and to make a comparison between the students of two high schools about smoking. Quantitative research was conducted in two high schools in Kosovo including students aged 15-18, both sexes. The realization of the research is done directly with the students. We used the method of theoretical analysis, comparative method and statistical method, as well as questionnaire technique. The main factors affecting smoking are the society, the family, and the personal, also other problems. Based on our research, we can say that this phenomenon is not as worrying as a small number of people consume smoking dominating more males than females. The family (parents) according to them are the main responsibility for preventing this negative phenomenon, then health services, and fewer schools and society.