The main reasons for children’s earlobe splitting include auricular hypoplasia, environmental factors, eczema and so on. 1. Incomplete development of the auricle: some children have congenital maldevelopment, resulting in incomplete development of the auricle, which leads to the symptoms of cracking under the ear drop. 2. Environmental factors: for example, in the cold winter did not do a good job of protection, resulting in children’s ears were frostbitten, and then produce ear drop crack; children in a dry environment for a long time, coupled with the lack of supplemental water, resulting in lack of moisture caused by the body of dry skin, which will also lead to the children’s earlobe crack phenomenon. 3. Eczema: When there is eczema in the ear, it may lead to local skin tissue lesions in the ear, and then the symptoms of cracked earlobes, accompanied by more rashes, and itching. For children with cracked earlobes, it is recommended to go to the regular hospital in time and take active treatment measures.