Not necessarily. It means that the tissue doesn’t look normal under the microscope, but it is not malignant. It may stay at a dysplastic stage indefinitely without transforming into cancer. It may even go back to being completely normal. Since it is almost impossible to predict which lesions will transform to cancer, all lesions should be followed by your dentist or a specialist. Avoiding high-risk behaviours such as use of tobacco/alcoholic beverages is essential.