A hard lump on the side of the cheek should first be examined with local color ultrasound to further define the diagnosis, while choosing a targeted treatment plan. Many patients are caused by the occurrence of parotid tumors, and the common one is the mixed tumor of parotid gland, the most important treatment means is to choose surgery, usually need to be under general anesthesia for surgical resection. Care should be taken during surgery to avoid adjacent vascular and nerve injuries, and postoperatively, localized pressure dressings should be applied to prevent infection, as some patients are prone to develop concomitant parotid ductal fistulas after surgery, which require prolonged medication changes. It can also be a lesion occurring under the skin, including subcutaneous fibroma, lipoma or sebaceous cysts occurring in the skin, all of which will be manifested as localized hard lumps, and the main treatment is also to carry out surgical treatment.