The molting of the heart of the foot is more common in dermatology, clinically, the following cases are mainly considered: 1, foot odor: especially the dry and flaky type of foot odor, the heart of the foot part will appear molting, and even accompanied by itching discomfort symptoms. This situation is often in the toe seam and other areas, there will also be molting, and fungal microscopy can be found mycelium and spores, is the result of fungal infection. 2, foot eczema: also will appear in the heart of the foot molting situation, this situation is often symmetrical distribution of both feet, and will also be accompanied by varying degrees of itching. Fungal microscopy without mycelium or spores, which is a kind of allergic problem. 3, exfoliative keratolytic disease: will also appear in the heart of the foot molting situation, but this condition has seasonality. Therefore, the heart of the foot peeling, depending on the clinical diagnosis, the etiology is also different.