Feet appear dry skin, may be physiological factors, can also be considered with eczema, tinea pedis, ichthyosis, palmoplantar keratosis and other diseases related. 1. Physiological factors: with the gradual increase in age, skin metabolism is slow, skin elasticity decreases, dehydration leads to dry feet, peeling; autumn and winter seasons, cold weather, poor skin circulation, water loss, resulting in local dryness and peeling; feet are subjected to long-term friction, thickening of keratin, which can lead to dryness, peeling, cracking. 2. Eczema: chronic keratinized eczema is related to various factors, resulting in inflammation of the superficial dermis and epidermis of the skin, which can be manifested as dryness, roughness and peeling of the skin. 3. Tinea pedis: tinea pedis is related to fungal infection, tinea pedis has more types, such as scaly keratosis pilaris, which may lead to local skin roughness, thickening, dryness, flaking, especially in winter, the symptoms are more obvious, and there may be pain or bleeding and other manifestations. 4. Ichthyosis: Ichthyosis is related to heredity and is a keratinization disorder skin disease, which can be secondary to other diseases. If ichthyosis occurs on the feet, it may lead to localized dry, rough and flaky skin. 5. Palmoplantar keratosis: Palmoplantar keratosis is mainly characterized by thickening, hyperkeratosis and flaking of the skin on the palms of the hands and feet, which is usually related to heredity. There are many reasons for dry and flaky feet, so it is recommended to pay attention to personal hygiene and skin protection, and go to the dermatology department of the hospital if necessary to get a clear diagnosis and active treatment.