There is a small lump on the contour of the ear. It is clinically recommended that the patient go to an ENT clinic and have it examined by a physician. Clinically, it could be the following diseases: 1. Auricular sebaceous cysts, which are more likely to occur in people who often get hot, stay up late, eat spicy stimuli, and are more common in young people. If this sebaceous cyst is not uncomfortable, it should be observed clinically. If the cyst is locally red and swollen, but does not break down and flow pus, clinically you can use antibiotic ointment for topical treatment, if the local formation of an abscess has a sense of volatility, you need to make an incision and drainage treatment, daily change of medication. 2, auricular scar, this may be due to trauma to the auricle and other factors, resulting in local abnormal growth, this situation generally requires surgical treatment, after surgery to be 3. Other diseases such as auricular hemangioma or tumors may also be present.