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头皮和头发变白有可能是白癜风，白癜风斑出现在头部的毛发处，导致头发的变白，在皮肤白斑持续数年以后，逐渐出现毛发的变白，建议出现白癜风以后，应尽早治疗，避免耽误病情，不要盲目的用药物治疗，到正规的医院接受正确的诊治。
