Dry and cracked feet can be caused by diabetes, environmental factors, skin diseases and so on. 1. Diabetes: Diabetic patients can have dry skin because diabetes can lead to autonomic nerve damage, so that the sebaceous gland secretion is reduced, the phenomenon of dry feet and cracked feet. 2. Environmental factors: usually in dry weather or too cold, especially in the fall and winter seasons, if you do not pay attention to foot moisturizing, may lead to dry skin, dry feet, cracked feet. 3. Skin diseases: If the patient has eczema, ichthyosis, palmoplantar keratosis, tinea pedis and other diseases, it may lead to local thickening of the stratum corneum, affecting the normal discharge of sweat, and the phenomenon of dry feet, cracked feet. Patients with dry feet and cracked feet should go to the dermatology department of the hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor’s treatment measures.