A device for urethral stricture dilatation comprising: a dilator 70 having an elongate body provided with a distal end tapered towards a distal tip, a proximal end and a guidewire channel extending therethrough; a guidewire 40 extending through the guidewire channel for guiding the dilator upon insertion; and a lubrication port at the proximal end of the elongate body for introduction of a guidewire lubrication fluid into the guidewire channel. The guidewire is provided with a stopper 50 for preventing the proximal end of the guidewire from passing through the guidewire channel towards the distal tip of the dilator. the stopper is adapted to receive a syringe for introducing guidewire lubrication fluid into the guidewire channel when the stopper is coupled to the lubrication port. The distal end of the dilator is curved and tapers from a diameter of between 14 to 24 French to 2 French.