The most common causes of cracked heels are dry skin, dry eczema, and fungal infections of the feet, etc. If the symptoms persist, it is recommended that you seek medical treatment promptly. 1. Dry skin: dry skin can easily cause dry skin cracks. 2. Dry eczema: Eczema can appear as dry cracks in the skin of the heel, and may be accompanied by itching and flaking of the skin. 3. Fungal foot infections: fungal foot infections can easily cause dryness and cracking of the heels, which require timely antifungal treatment. There are many reasons for heel cracks, it is recommended to go to the hospital in time to find out the cause of the disease by the doctor and carry out targeted treatment.