Children’s summer lips may be dry and cracked with dehydration, solar lentigines, vitamin B deficiency and so on. 1. dehydration: children may not like to drink water, high summer temperatures lip water evaporates too quickly, and children like to lick their lips constantly, it will lead to children with dry lips. 2. solar lipitis: summer sunlight is relatively strong, children like to go out activities, too much sunlight exposure caused by the lip mucosal damage, will lead to children with dry lips. 3. Vitamin B deficiency: Vitamin B has a certain effect on skin cell recovery. Lack of vitamin B can lead to symptoms of dry skin, so it may also cause children’s chapped lips. Children’s summer dry cracked lips can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for relevant examinations, with the help of the doctor to clarify the cause, and targeted treatment or treatment.