International travel can pose various risks to health. Travellers may encounter sudden and significant changes in altitude, humidity, microbes, and temperature, which can result in ill-health. In addition, serious health risks may arise in areas where accommodation is of poor quality, hygiene and sanitation are inadequate, medical services are not well developed and clean water is unavailable. Travellers should seek advice on the potential hazards in their chosen destinations and understand how best to protect their health and minimize the risk of acquiring diseases. Forward planning, appropriate preventive measures can protect their health and minimize the risks. It is the traveller’s responsibility to seek information, to understand the risks involved and to take the necessary precautions to protect their health while travelling.