The skin folds on the inner thigh: 1, may be a certain eczema in the area, eczema if long-term recurrence, may appear local skin keratin layer thickening, and eventually formed a certain proliferation of performance. 2, may be a certain fungal infection in the area, fungal infection after the formation of ringworm, if a long time inflammation stimulation, will also produce local changes in the keratin layer, in the appearance will also appear this similar. This is because the skin of the patient is not only overly fat, but also because of the rapid growth of the skin in a short period of time, which eventually leads to a certain degeneration of the collagen fibers and elastic fibers of the skin.