The difference between common white spots and vitiligo mainly lies in different causes, symptoms and treatment methods. 1. Different causes: ordinary white spots are often skin lesions that occur on the skin, such as skin damage after the scabs fall off, may form white spots, but also may be white furfur, lichen planus after inflammation caused by hypopigmentation. The cause of vitiligo is not clear, and is considered to be related to genetic factors and autoimmune system diseases. 2. symptoms are different: ordinary white spots usually do not continue to spread after the formation, while vitiligo can often spread phenomenon. 3. different treatment methods: ordinary white spots will generally gradually fade on their own, do not need special treatment, if the vitiligo is not treated, the condition can continue to aggravate. It is recommended that if you have a white spot on your body and you are not sure which is the case, you should go to the dermatology department of the hospital in time to be identified and diagnosed by the doctor.