Heel cracking hard skin may be long-term dry, chapped eczema, tinea pedis and so on. 1. Long-term dryness: If the heel is dry for a long time or long-term stress, the local skin collagen tissue hyperplasia, affecting the distribution of local sebaceous glands and sweat glands, resulting in the appearance of dry cracked and cracked skin on the heel. 2. Cracked eczema: affected by genetic factors, endocrine disorders, allergies, cold weather stimulation and other factors, resulting in dehydration of the cuticle of the heel, appearing cracked and crusty phenomenon, accompanied by limited erythema, pimples, dandruff and other symptoms. 3. Ringworm of the foot: If the amount of labor, activities, sweating and other factors, the sweaty and humid environment of the foot is conducive to the growth of fungi, thus causing the heel dry cracked crust, accompanied by peeling, blisters, itching and other symptoms. It is recommended to go to the regular hospital in time, under the diagnosis of the doctor, according to the patient’s condition, targeted treatment, life should pay attention to personal hygiene, wash your feet diligently, do not share shoes, foot basin and other daily necessities.