The common causes of itchy toes include tinea pedis, frostbite, eczema and so on. 1. Tinea pedis: mainly caused by fungal infection, common causative organisms include Trichophyton rubrum, Trichophyton mustelii, and so on. According to the different clinical characteristics, blister-type tinea pedis and macerated tinea pedis are accompanied by symptoms of obvious itching of the skin of the foot, in addition to the deep in the blisters of the size of a needle tip, the skin of the toe seams impregnated with whitish, the surface of the loose and easy to peel off, revealing red vesicles and oozing, etc. The symptoms of tinea pedis are mainly caused by fungal infections. 2. Frostbite: this disease is mainly due to long-term exposure to cold and wet environment, skin vasospasm contraction leads to tissue hypoxia caused by cellular damage, long time vascular paralysis and expansion caused by venous stasis, capillary dilatation, increased permeability, plasma infiltration into the tissue interstitial. Manifestation of limited edematous purplish-red plaques or nodules, according to the discoloration, conscious itching and swelling sensation and other symptoms. 3. Eczema: the etiology of this disease is unknown, may be related to endocrine and metabolic changes, neuropsychiatric factors, genetic factors, chemical substances and other factors, preferably in the foot, manifested as erythema, papules, papules, scales, skin thickening, accompanied by itching and other symptoms. It is recommended that patients combine their own situation, if necessary, to the regular hospital dermatology department, follow the doctor’s instructions to clarify the diagnosis, reasonable treatment.