Auricular enlargement is the enlargement of a confined cyst on the ventral side of the auricle of undetermined cause, which is called pseudocyst due to the absence of epithelial layer in its cyst wall. Patients are predominantly male, and the age of onset is usually between 30 and 40 years old, mostly occurring on one side of the auricle. The etiology and pathogenesis of this disease are unknown. After the disease to keep the local clean, do not indiscriminate dressing, so as to avoid secondary infection and the occurrence of purulent perichondritis, auricular deformity. It is called pseudocyst due to the absence of epithelial layer in its cyst wall. Patients are predominantly male, the age of onset is usually 30 to 40 years old, mostly occurring on one side of the auricle. As well as inflammatory stimulation, genetic factors caused by the impact. Diet for diseases related to enlarged auricle should be light diet, low salt, less oil food.