“What is the difference between dermabrasion and microdermabrasion?”

It is depth that the skin is dermabraded. Micro is less. When an area is considered for dermabrasion it is how deep, aggressive the procedure is to get the desired result. You think of it as
sanding the skin like you were sanding a piece of wood with sand paper. If it is done poorly, scarring can result. You have to make sure the person doing it has the training, the specialty and it is fair to ask to see pictures of procedures the doctor has done.