The first is a sebaceous cyst of the ear, which is particularly common clinically and may be caused by the obstruction of the secretion of the sebaceous glands of the hair follicles and the long-term retention of the secretions inside, resulting in the expansion of the wall of the cyst to form a cyst. The sebaceous cysts can be observed if they are small in the early stages, but if they are large, surgery is recommended. The second type is lipoma, which is more likely to occur in patients who are more obese. There is nothing much that can be done about lipoma, and surgery is generally recommended if you want to deal with it. The third condition is that some patients have some hemangiomas around the ears, but they are not very common. In other cases, there are rare tumors around the ear, such as trichoblastic tumors, but malignant ones are rare. In any case, patients with a growth on the side of the ear are advised to go to an outpatient clinic for ultrasound and other related tests to make a determination. Clinically, surgery is usually required, and pathology is sent after surgery to further clarify the nature.