The baby’s ear next to the broken skin water, may be trauma infection, contact dermatitis, behind the ear eczema and so on. 1. trauma infection: due to trauma, may be subcutaneous soft tissue infection, easy to produce purulent lesions, there is an increase in tissue fluid, resulting in the baby’s ear next to the broken skin water, and accompanied by pain, redness and swelling and other symptoms. 2. contact dermatitis: contact dermatitis may also cause watery skin next to the ear, when the baby behind the ear after contact with certain substances, can make behind the ear and other parts of the inflammatory reaction, erythema, edema, and can be accompanied by blisters or oozing, blisters rupture, vesicles or scabs can be formed. 3. Post-auricular eczema: if the baby behind the ear eczema, may be due to allergies, the appearance of millet size papules or small blisters, lesions border unclear, scratching is point-like vesicles, and accompanied by obvious plasma exudate, appearing next to the baby ear broken skin and water phenomenon. When the baby appeared next to the ear broken skin water situation, parents should take the baby to the hospital in time to improve the relevant examination, clear cause of the disease under the guidance of the doctor standardized treatment.