A bulge at the junction of the ear and cheek that moves may be caused by lipoma, epidermoid cyst, lymphadenitis and other diseases. 1. Lipoma: the etiology is not clear, may be related to heredity, chronic inflammation and other factors. Patients will have lumps under the skin, which can be moved by gently pushing with fingers and can appear in any part of the body where there is adipose tissue. 2. Epidermoid cysts: the etiology may be related to embryonic ectopic, surgical operation and other factors, the patient will appear in the skin or subcutaneous nodules, light brown or normal skin color, can be moved, commonly found in the face, trunk and other parts of the body. 3. Lymphadenitis: the cause of the disease is mainly related to infection, the patient will appear localized lymph node enlargement, pain and other symptoms, can be moved by hand. If you suffer from otitis media, otitis externa and other diseases, induced by local lymph node inflammation, there will be a bulge at the junction of the ear and cheek will move this situation. There are many diseases that can cause a bulge at the junction of the ear and cheek to move, so it is recommended to go to the hospital to clarify the cause of the disease.