According to the symptoms described, there are several possibilities to cause this situation: 1. It is due to their own development, resulting in two ears of different sizes. 2. It is caused by acquired reasons, such as inflammation, infection or certain swelling or occupying lesions in one ear, resulting in deformity of the ear or auricle, causing two ears of different sizes. The former does not need to be treated without special problems, and if the appearance is more affected, it can be solved later by means of plastic surgery. If it is caused by inflammation, the main focus is on local anti-inflammation. If it is caused by some tumor or an occupying lesion, the only way to reshape it is through surgery. In this case, there may be some difference in the size of the two ears recovered at a later stage.