Can i have leukoplakia at 15?

Yes: Forms of leukoplakia are not limited by age. It is more common in adults due to chronic habits and longer exposure. This tissue change noted by a white lesion can be a normal abnormality or more serious concern. One type is when teen uses smokeless tobacco. The area holding the pinch will turn white and uneven. Not normal. Can become cancerous. Talk with your dentist.

Yes: You can have it at any age and if it doesn't go away within 2 weeks you should get it checked out by a dentist or doctor.