Soaking feet skin, may be physiological reasons, may also be pathological reasons, pathological reasons to consider with tinea pedis, the use of drugs or palmoplantar pustulosis and other reasons. Physiological reasons: the soles of the feet is the human body stratum corneum (stratum corneum is composed of dead nucleated keratinocytes) thicker parts of the foot, soaking feet peeling with the feet of the stratum corneum to absorb enough water expansion related. Pathological causes: 1. Tinea pedis: the foot can develop into tinea pedis due to contact with infectious fungi, for example, when there is macerated vesicular tinea pedis, whitening of the macerated skin can be seen between the fingers, and after soaking the feet, the loose epidermis is easy to fall off, which can reveal the vesicular surface, and there is obvious itching, and fissures can be formed and oozing can occur after scratching. 2. Drugs: In the process of treating tinea pedis, when some medicinal powders such as foot powder are added to the water during foot soaking, a large amount of foot desquamation can be seen due to the presence of benzoic acid, salicylic acid and other exfoliators. 3. Palmoplantar pustulosis: belongs to one kind of psoriasis, related to genetic, immune and environmental factors, can appear in the foot and metatarsal parts, there will be erythema on the basis of small pustules, 1 ~ 2 weeks after the rupture of the pustules, scabs and flaking, after soaking the feet, the epidermis can be swollen and fall off. Skinning when soaking feet, may also be related to other reasons, if caused by pathological factors, it is recommended to consult a doctor in a timely manner, and follow the doctor’s instructions for treatment.