Every white patch may not be vitiligo. It is important to know the symptoms. Vitiligo is not painful and it is very rarely itchy. The symptoms of Vitiligo include:
Appearance of irregular chalky white patches on the body. Depigmentaion can be noticed in the face, lips, hands, arms and feet.
Untimely whitening or graying of the hair on your head, eyebrows or beard.
Vitiligo might increase the chance of sunburnespecially in lighter skin.
Any kind of trauma of the skin may trigger white patches of vitiligo on any part of the skin surface: it is called Koebner Phenomenon, and is quite common.