The polyvascular disease (PVD) is presented by coexistence of ischemic heart disease (IHD),carotid disease (CD) and peripheral arterial disease (PAD). In the essence of this disease is atherosclerosis. The aim of the research was to learn what is the course of the worsening multiple arterial diseases during the two-year period considering the new cardiac, cerebrovascular and peripheral vascular events. Among 150 patients with clinical manifestations of obliterate vascular disease of at least two aforementioned vascular diseases, we investigated the incidence of new coronary, carotid and peripheral vascular events during the two-year period. New coronary events were the most common in PVD patients with preexisted IHD (88 persons, 58.7%, p < 0.01), in PVD patients with preexisted CD (51 persons, 34.0%, p < 0.01) and in PVD patients with preexisted PAD (61 persons, 40.7%, p < 0.01) as well. The second most common event is the worsening of the preexisting dominating vascular disease. Thus, whatever the predominant vascular disease was, in the further two-year course of polyvascular disease, the new coronary events are the most frequent.