Types of vitiligo

Vitiligo is classified by how the patches are distributed, because the type predicts how it behaves and which treatments work best.

Non-segmental vitiligo (the common form, about 9 in 10 cases). Patches appear on both sides of the body, often symmetrically - around the eyes and mouth, on hands, feet, elbows, knees and folds. Subtypes include generalized (scattered widely), acrofacial (face plus fingers and toes), universal (very extensive), and localized/focal (one or a few patches). This type can start at any age, may come and go in activity, and is the type most clearly linked to autoimmunity and thyroid disease.

Segmental vitiligo. Patches confined to one segment or band on one side of the body - a stripe on the face, arm or trunk. It usually starts in childhood or youth, spreads within that segment for six to twelve months, then typically stops and stays stable for life. Hair in the patch often turns white early. Because it stabilizes, segmental vitiligo is the best candidate for surgical treatment later.

Mixed and unclassified forms. Some people show both patterns, and early focal cases may not yet declare their type.

Why the type matters practically: non-segmental vitiligo is treated with medicines and phototherapy aimed at stopping immune activity and stimulating repigmentation; segmental vitiligo, once stable, responds best to surgical grafting. The type also sets expectations - segmental tends to stop on its own; generalized needs longer management.

Ayurvedic view (interpretive): classical categories divide shwitra by dosha dominance and patch character - an interpretive framework with limited evidence. Modern classification by distribution is what actually predicts course and guides treatment.

Remember: both-sides, spreading = non-segmental (medicines and phototherapy); one-sided band that settles = segmental (best surgical option once stable). A dermatologist's classification shapes the whole plan.