Vitiligo is a skin disorder manifested by white patches on skin. The symptoms of vitiligo are appearances of skin whitish patches on skin.
Vitiligo is classified in two major types:
Appearance of one or more maculae on skin in quasi dermatomes pattern is known as segmental vitiligo. In simple words segmental vitiligo is the distribution of white patches in unilateral & asymmetric way. The form generally peruse as a stable course. Cases have been shown that 16 to 20 percent patients who have segmental vitiligo form are also suffering from thyroid disorder. Usually the first segmental vitiligo patch is appeared on face, as it is mostly exposed to sun rays.
The segmental vitiligo is gradually giving their reaction to skin autologous grafting via producing stable pigment cells in skin. In children mostly vitiligo is appeared as segmental vitiligo type. The disease is caused by different aspects / causes like heredity, dietary deficiency, sun exposure but thank fully this disease is not linked up with the auto immune disorder.
If no proper treatment is taken in case of segmental vitiligo patches, then vitiligo lesions spreads widely, and will be remain throughout the life.
Non segmental Vitiligo:In a survey it is found that in children non segmental vitiligo is consisting of 78%, with focal vitiligo 14.4% and 4.6% of segmental vitiligo. The Non-segmental, united or UN segmented vitiligo which is also known as vulgaris vitiligo is defined as the white spots on skin that are showing in a generalized widespread distribution.
The patches are spreading rapidly on different areas of body, and if no treatment is taken then it will continue to spread in large portions of body. Many times the patches become the permanent mark on skin areas and cannot be recovering by treatments. Although in non segmental vitiligo, patches can be spread on many part of body but the most affected body parts are face, neck, bony prominences of hands, legs, and mucosal surfaces of body.