Vitiligo is mainly caused by autoimmune system disorders, genetic factors, mental factors, etc. It is generally not contagious to others. Vitiligo can be caused by immune system disorders that lead the body to produce auto-melanocyte antibodies, which reduces melanin production and leads to vitiligo; it can also be caused by genetic inheritance, with family aggregation phenomenon; it may be caused when people are overworked, anxious, stressed or have skin loss, and come into contact with certain chemicals, and so on. However, vitiligo is not a contagious disease, it will not be transmitted to others and you can have normal contact with people around you. When suffering from vitiligo, you should consult the doctor in time and treat it actively under the doctor’s guidance.