Middle-aged people are the main group of people who develop parotid adenoma, and the disease has no discomfort and grows slowly. Most of them are benign, but there is a 3% chance of malignancy as the disease progresses, so timely treatment is needed to avoid delays. The best treatment for parotid adenoma is surgical excision, and a biopsy can be done directly after surgery to determine its nature. The reason for not doing biopsy before surgery is that the tumor envelope is incomplete and biopsy is prone to malignancy and damage to the facial nerve, so timely biopsy after surgical excision is needed to determine whether the nature is benign. The prognosis of parotid adenoma is relatively good, and there is no recurrence after surgical resection. The facial nerve can be preserved intact for benign tumors, but in case of malignancy, all parotid glands, including the facial nerve, should be removed. The longer the course of the disease, the greater the possibility of malignant change. To avoid malignant change, timely surgery should be performed to remove the parotid adenoma, pay attention to oral hygiene after surgery, rinse your mouth after meals, take appropriate physical exercise to increase your body’s resistance, and eat a light and non-stimulating diet.