The actual white spots on the belly may be the performance of vitiligo, lichen planus, pemphigus, non-pigmented nevus, and it is recommended that patients seek medical attention in a timely manner, under the guidance of a dermatologist, to conduct the appropriate laboratory tests to confirm the cause for the corresponding treatment. 1, vitiligo: is a relatively common acquired pigmented skin disease, manifesting as limited or generalized skin mucous membrane pigmentation complete loss. It can occur in various parts of the body. It is common in the abdomen, back of the hand, face and around the genitalia, etc. Histopathological examination or Wood’s lamp examination should be performed to confirm the diagnosis; 2. It appears as large irregular patches with a scaly surface. The diagnosis should be confirmed by a fungal microscopic examination of the scales at the lesions; 3, pemphigus: characterized by a reduction in local skin and hair pigmentation, autosomal dominant inheritance, including the belly will have multiple skin white spots, accompanied by forehead central part of the triangular white spots with forehead clusters of white hair symptoms. The diagnosis should be further clarified by physician examination, Wood’s lamp examination and histopathological examination of the skin; 4.