Oral mucous membrane keratosis may be caused by bad habits, oral diseases, oral lichen planus, etc. It can be relieved by improving living habits, treating oral diseases and using adrenocorticotropic hormone drugs. 1. Bad habits: Bad habits such as chewing betel nut, smoking, drinking, etc. can lead to keratinization of the oral mucosa, which can be alleviated by quitting smoking and drinking, quitting betel nut and other stimulating foods, and developing good habits of brushing the teeth in the morning and evening, and rinsing the mouth after meals. 2. Oral diseases: the presence of untreated caries, residual roots and crowns, bad restorations and other oral diseases can also lead to oral mucosal keratinization symptoms. Symptoms can be relieved by filling caries, removing root and crown remnants that cannot be retained, and removing defective restorations. 3. Oral lichen planus: Non-erosive oral lichen planus may also lead to oral mucosal keratinization, which can be relieved by using adrenocorticotropic hormone drugs, such as trimethoprim and prednisone acetate tablets, etc. If the patient has oral mucosal keratinization, the symptoms can be relieved by filling the caries and extracting the unretainable root and crown. If the patient has oral mucous membrane keratinization, it is recommended to consult the doctor in time, under the guidance of the doctor, follow the medical advice to use drugs, clear the cause of the disease and actively cooperate with the treatment.