Patient: I would like to ask if there are any postoperative sequelae? Bu Rongfa, Department of Stomatology, Beijing 301 Hospital: If there is no pathology, the diagnosis of mixed tumor cannot be confirmed. The main concern of parotid surgery is facial nerve damage. Whether it will definitely be damaged depends on a number of factors such as pathological type, tumor size and relationship with facial nerve. Please let the oral and maxillofacial surgeon see it before the doctor can inform you in detail about the post-operative complications in a very targeted way.