What are the main subtypes of vitiligo and how do they differ in their presentation?
The main subtypes of vitiligo are non-segmental vitiligo and segmental vitiligo. Non-segmental vitiligo, also known as generalized vitiligo, is the most common form and is characterized by depigmented patches that often appear on both sides of the body in a symmetrical pattern. Segmental vitiligo is less common and tends to occur at a younger age. It is characterized by one or a few depigmented patches that usually appear on one side of the body in a dermatomal pattern.