A 7-year-old child with white patches on his body, not on his face and hands, may have vitiligo, but it may also be caused by conditions such as anaplastic nevi and lichen planus. 1. Vitiligo: Vitiligo is an acquired skin pigmentation disorder with white spots of different sizes and shapes, mostly on the face, neck, back of the hands, trunk, external genitalia and other parts of the body, so 7-year-old children with white spots on the body, face and hands do not have, may be vitiligo. 2. aphakic nevus: aphakic nevi usually appear as white patches on the skin at birth or shortly after birth and may be caused during embryonic development. The distribution of these white patches is usually limited or characteristic, and the color of the white patches is not very white, mostly appearing on the trunk, lower abdomen, and proximal limbs. Therefore, 7-year-old children with white patches on the body, face and hands are not may also be a pigmentless nevus. 3. lichen planus: a fungal infection caused by malassezia invading the cuticle of the skin, occurring in the chest, back and other parts of the sebaceous glands, often manifested as pale white spots, aggravated in summer, relieved in winter, and prone to relapse in the following year. So 7-year-old children with white spots on the body, face and hands do not may also be caused by lichen planus. It is recommended that children with white spots on their bodies should go to the dermatology department of a regular hospital as soon as possible, and standardized examination and diagnosis can distinguish whether the white spots on the skin are vitiligo or not, and can also scan in detail the extent of the loss of skin lesions and melanin, which can provide a reliable and objective basis for clinical treatment.