Depigmentation is limited to the distal extremities (fingers, toes) and periorificial areas (around the mouth, eyes, nostrils).
One or a few macules of depigmentation are present in a single, isolated area, without a segmental distribution.
Depigmentation is restricted to only the mucous membranes, such as the oral or genital mucosa.
Depigmentation occurs in a unilateral, dermatomal or quasi-dermatomal pattern, often with early onset and rapid stabilization.
Nearly complete or total depigmentation of the skin has occurred, affecting more than 80% of the body surface area.
Symmetrical, bilateral patches of depigmentation are scattered widely over the body in the most common form of vitiligo.