Will there be scars after surgery for congenital preauricular fistula? How big is the wound?

Patient's question:

Congenital preauricular fistula with infection and purulent discharge, with granulation tissue formation

Doctor's answer:

Scars mainly depend on whether one has a tendency to scar. The size of the trauma and the degree of decay of the surface skin after fistula infection, as well as the depth of the fistula's path, are related to it.