Recently, combing through the information of patients with oral swelling in outpatient clinics, it is found that most of the swelling of the oral mucosa occurs in the elderly, with poor oral hygiene, and some of them have poorly repaired dentures, rotten teeth, etc. The majority of them are not in the early stages of life due to lack of awareness of health care or inconvenience. Due to the lack of health care awareness, or inconvenient access to medical care, most of them are not in the early stages of the disease when they visit the doctor. In addition, the elderly have poor information channels and cannot realize the risk of the disease. It is recommended to observe the oral condition of the elderly when appropriate, whether the dentures are suitable, whether there are any hyperplasia in the gums, the side of the tongue, the upper chamber (palate), any white plaque, and any ulcers that have not healed for a long time. Early detection, early treatment and stay away from oral tumors.