Extradural haemorrhage (EDH) is most often produced by bone fractures with secondary lesion of the middle meningeal artery, being of a higher frequency in the young due to a weaker attachment of the dura mater to the inner side of the cranium. The main cause of the fractures is represented by cranio-cerebral trauma, which occurs mainly through car accidents. The fractures are the cause of vascular ruptures that lead to fast accumulations of blood. These, in turn lead to a high intracranial pressure. EDH is an emergency because it can lead to permanent cerebral lesions and even death when not promptly approached, the aggravation taking place in mere minutes. Next, we present the case of a 48 year-old patient who had been involved in a car accident as a pedestrian. This caused an altered state of consciousness (GCS=6 points) and hemiplegia of the left side limbs.