Vascular diseases are a major public health problem throughout the world. These diseases can be prevented to a large extent, i.e. delay their initiation or occurrence of complications by avoiding risk factors that stimulate the occurrence of diseases such as excessive alcohol consumption, excessive body weight, smoking, physical inactivity, improper nutrition, as well as treatment and better control of hypertension, fat and sugar. Vascular diseases cause incompetence, disability and early mortality. We can expect an increasing burden on vascular diseases, and it is high time to take comprehensive prevention measures to prevent diseases, develop complications and disability. For the purpose of drawing up graduate work, a two-month study was conducted at Varazdin General hospital. The study was conducted in subjects who come for a follow-up examination with a vascular surgeon, for the first time or more than once. The aim was to investigate whether there was a correlation between responsible health behaviour and the occurrence of vascular disease and whether complications occurred due to irresponsible behaviour toward their own health. The questionnaire consisted of 37 questions relating to the reason for arrival, regularity of control examinations, hospitalisation due to vascular disease, risk factors (smoking, alcohol, physical activity, diabetes mellitus, arterial hypertension, hyperlipidaemia). A total of 100 subjects, 61 male subjects and 39 female subjects participated in the survey, so we can say that there is a higher incidence of vascular disease in the male population. The majority of subjects were in the age group from 61 to 70 years. According to the results, almost every other subject has an overweight. The majority of examinees regularly come to check-ups. Most subjects were hospitalised due to vascular disease. The majority of subjects have diabetes and it can be concluded that as a risk factor it is closely associated with the occurrence of vascular disease. Male subjects are significantly more frequent drinkers. As many as 46% of the respondents were smokers. After diagnosis of vascular disease, only 8% of subjects stopped smoking and most subjects did not stop smoking after hospitalisation. Similarly, physical activities have started to engage in or increased so far significantly less respondents than those who have either not started to engage in or have not increased their activities so far. It is noted that as many as 41 subjects had surgery to amputate limbs or some part of them as the worst complication of vascular diseases of the lower limbs. Looking at results, education based on the promotion of healthy lifestyle through individual approach and therapy is the key to effective prevention.