It is estimated that about 50 million people in our country goes annually to the tropics. Travellers’ diarrhea is the most common health problem of travelers from industrialized countries to developing countries with a low standard of sanitation. The most common cause of diarrhea is the infection by the entero-toxic strain of Escherichia coli. Food and water contaminated with feces are the main reservoir of pathogens that cause travellers’ diarrhea. The basic importance in the prevention is an accurate hand hygiene, drinking bottled water and adequate thermal treatment products. Treatment of diarrhea is primarily to prevent dehydration. Another known method is the antibiotic treatment, loperamide. In the phase of research are probiotics and vaccine WC-RBS known in the prevention of cholera. The main aim is to increase public awareness of the problems that can appear during the trip to the tropics. The main aim is to increase public awareness about the problems that can happen to us when traveling, as well as learning basic information about travellers’ diarrhea, such as symptoms, areas of occurrence, the possibility of infection, treatment, and how to use prevention to avoid unpleasant effects of travel.

Key words: diarrhea, travels, travel medicine, tropical diseases.