Vitiligo is a disease that causes the skin to lose its color in different blotches. The extent and rate of color loss due to vitiligo is unpredictable. It can affect any part of the body. It can also affect the hair, mouth, and even the eyes. Normally the color of hair and eyes are depicted by melanin, but vitiligo occurs when the cells that produce melanin die out or they stop functioning.
This skin disease tends to affect people of all skin types but it is more common in people who have dark skin. It is not life threatening and it is not contagious. Treatment can improve the appearance of the skin but this disease is not curable.
Some of the signs include discoloration of the skin, premature whitening or graying of the hair on the scalp, eyelashes, eyebrows or beard. It also involves loss of color in the tissues that are found on the side of the mouth and nose.