Summer heel skin cracking may be related to dry skin, scaly keratosis pilaris, foot eczema and so on. 1. Skin aging: common in the elderly, due to age, skin water content decreases, sebum secretion decreases, summer local water evaporation is too much, easy to crack. 2. Scaly keratinized tinea pedis: often due to fungal infections, such as Trichophyton tinea pedis, flocculent epidermis, etc., resulting in pathological changes in the skin. It mostly involves the whole sole of the foot, especially the heel, covered with hard and adhesive thick scales. The skin of the heel is hypertrophied, keratinized and cracked. 3. Foot eczema: hyperkeratotic eczema, skin thickening, decreased elasticity, easy to crack. Summer heel skin cracking, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for further examination, with the help of the doctor to clarify the cause, and targeted treatment or treatment.