The baby chin white may be birthmarks, white chaff rash, vitiligo and other causes, it is recommended to take the baby to the hospital to clarify the cause of the disease. 1. birthmarks: a pigmentless nevus, anemic nevi and other congenital birthmarks can show skin hypopigmentation spots, chin white phenomenon. 2. Leukofuria: Leukofuria is a mild inflammatory skin disease that occurs in children’s faces. It is characterized by round or oval pale white spots of varying sizes, covered with chaff-like scales. The cause of white chaff rash is not clear, may be related to atopic dermatitis, can lead to the baby chin white. 3. Vitiligo: Vitiligo is a common acquired pigment loss skin mucosal disease, clinical manifestations of skin pigmentation white spots, can occur in all parts of the body. Genetic factors, autoimmunity and so on may cause vitiligo. Vitiligo may cause the baby chin white. If your baby develops uncomfortable symptoms, you should bring your baby to the hospital in time to avoid delaying the condition.