Leokoedema is a white lesion (plaque) with a bilateral, symmetrical and crinkled appearance which cannot be removed; it is a congenital developmental defect and completely asymptomatic. If the mucosa is stretched, wrinkles will appear and the white colouration will disappear. The appearance of the lesion is determined by the intense oedema of the cells of the stratum spinosum. It is a totally benign condition which does not require any treatment.