Dry, cracked and peeling lips may be caused by dehydration, chronic lipitis, and photochemical lipitis. 1. dehydration: when the body appears to heat, water evaporation is too fast, or a long time lack of water, it is more likely to appear the phenomenon of dry cracked lips peeling. 2. Chronic lipitis: may be due to dry climate, lip licking, cold, etc., often recurring, sometimes light, sometimes heavy, easy to occur in the cold dry season. Often manifested as lip congestion, red lips flaking, cracking and other symptoms. 3. Photochemical labiitis: mostly seen in the chronic type, is due to repeated and persistent sunlight exposure, resulting in repeated and sustained damage to the lips. Manifested as dry and flaky, congested and swollen, cracked and other symptoms. When the lips are dry and cracked skin, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for further examination, under the guidance of the doctor to clarify the cause, and targeted treatment or treatment.