When a bag grows next to the ear hole, the patient is advised to visit an ENT clinic to examine the auricle, the external auditory canal, and the structures in front of the ear screen. There are usually the following diseases: 1. auricular pseudocysts in the auricular cavity, which are benign lesions that occur deep in the auricular cavity, that is, behind the ear next to the ear, and are recommended for surgical treatment. 2. sebaceous cysts in front of the ear next to the ear, which occur in patients who often eat spicy and stimulating foods, as well as those who often stay up late, are sebaceous cysts formed by blocked secretion of the sebaceous glands. If it is accompanied by infection, the area will be painful. If it is relatively small, it can be observed. If it is larger, consider surgery.3. Some patients have auricular boils, which are usually accompanied by localized pain. In the early stage, it can be treated with anti-inflammatory treatment. Once the local boil is larger, it may require incision and drainage, medication change, etc.