Vitiligo is a common acquired pigment loss disease with a higher incidence in dark-skinned people than in light-skinned people. This is a very good way to get the most out of your life. The actual fact is that you will find a lot of people who are afraid of not having vitiligo when they hear about it. The actual fact is that you will need to identify vitiligo with other common diseases, such as lichen planus, anemic nevus, non pigmented nevus and verified hypopigmentation. I have listed a few simple points of identification for your reference. Differentiation points of lichen planus: sebaceous area, round/oval light-colored spots, surface scaling, fungus Differentiation points of anemic nevus: congenital, unilateral distribution, white spots do not redden after rubbing or heating Differentiation points of anaplastic nevus: congenital or appeared shortly after birth, segmental distribution of light-colored spots, fuzzy borders, persistent for life Differentiation points of post-inflammatory hypopigmentation: history of primary disease, limited to primary lesion site, usually temporary Of course, this is only for our reference, as the affected person found skin color abnormalities, the first choice is to get professional lifelong help, because the doctor is more experienced, followed by a richer means of examination. For example, commonly used: woodlight and reflective confocal laser scanning microscope (commonly known as “skin CT”) for vitiligo and related disease identification has a unique advantage.