The provision of medical care during major events is a significant issue, both for organisers and for the emergency services that support these events. Nevertheless, research on this matter is limited. This research attempts to approach the matter through the study of fairs and events held at TIF-HELEXPO during the 2015-2018 period (1,774 medical incidents). Result analysis indicated that there are no significant differentiations in the number of medical incidents with regard to gender, age, country of origin, status, type of illness, and outcome of incidents; however, there were differentiations in the frequency of incidents, with regards to the character of the fair and the event.