The white mucous membrane peeling inside the mouth is a symptom caused by abnormalities in the oral mucosa. There are many reasons for the white mucous membrane peeling inside the mouth, common physiological reasons include poor dietary habits, insufficient water intake, pathological reasons include oral ulcers, aspergillosis, candidiasis, oral lichen planus, oral leukoplakia, systemic lupus erythematosus, etc. I. Physiological causes: 1. Poor dietary habits: If you often eat some spicy and irritating food, such as chili, barbecue, white wine, etc., it will stimulate the oral mucous membrane cells and appear the phenomenon of white mucous membrane peeling inside the mouth. At this time should improve dietary habits, light diet, less spicy, stimulating food; 2, not enough water: If you do not drink enough water, will cause saliva reduction, oral dryness, the phenomenon of white mucous membrane peeling inside the mouth. Usually should drink more water for water supplement, and the symptoms can be relieved by themselves after a period of time. Second, the pathological reasons: 1, oral ulcers: if the patient due to diet, inflammatory stimulation, psychological pressure and other factors lead to oral ulcers, mucosal ulceration formed ulcer surface, broken mucosa off, there will be white mucous membrane peeling phenomenon inside the mouth. You can apply drugs locally under the guidance of a doctor, such as lidocaine gel paste, as well as a reasonable mix of dietary structure to cooperate with treatment; 2, pemphigus: when the body’s immunity decreases, it is easy to produce pemphigus, which will appear inside the mouth white mucous membrane peeling, and accompanied by blistering symptoms. Available saline wipe erosion mucosa, and under the guidance of a doctor to use glucocorticoids, such as prednisone acetate, and immunosuppressants, such as cyclosporine; 3, candidiasis: If the oral mucosa is infected with Candida albicans, then the infection site will appear a layer of white pseudomembrane, pseudomembrane off will appear inside the mouth white mucous membrane peeling phenomenon. The actual fact is that you can use drugs for antifungal treatment under the guidance of a doctor, such as mycophenolate tablets; 4, oral lichen planus: oral lichen planus is a chronic inflammation of the oral mucosa, the onset will have oral tingling sensation, rough discomfort, can also be accompanied by skin lesions, that is, the phenomenon of white mucous membrane peeling inside the mouth. It can be rinsed with light salt water and treated with erythromycin ointment and other drugs under the guidance of a doctor; 5, oral leukoplakia: oral leukoplakia is an oral mucosal disease caused by hyperkeratosis of the oral mucosa, which is characterized by self-conscious roughness, numbness and astringency of the lesion, and can also be accompanied by the phenomenon of peeling of the white mucosa inside the mouth. Radiotherapy or drug treatment can be used under the advice of doctors, commonly used drugs such as vitamin A acid cream; 6, systemic lupus erythematosus: systemic lupus erythematosus is an autoimmune disease, can involve the oral mucosa, the phenomenon of white mucous membrane peeling inside the mouth. It can be treated with hormones and immunosuppressants under the guidance of doctors, such as methylprednisolone, prednisone acetate, etc. If the phenomenon of white mucous membrane peeling inside the mouth does not improve even after improving diet and lifestyle habits. It is recommended to go to the hospital in time to identify the cause of the disease to achieve early detection, early diagnosis and early treatment, so as not to delay the disease and affect the effectiveness of treatment.