Eating betel nut mouth lining white may be the oral mucosa fibrotic lesions or oral leukoplakia, need to immediately quit betel nut, if necessary, the use of drugs for treatment. 1. Mucosal fibrosis. Betel nut is a strong stimulus to the oral mucosa and addictive, long-term stimulation of the oral mucosa will lead to thickening of the mucosal keratinization layer, appearing mucosal whitening and roughness, fibrotic lesions, at this time, you need to stop eating betel nut, can be applied locally to eliminate the keratinization of the Vitamin A acid medication for observation. 2. Oral white spots. Oral leukoplakia is a precancerous lesion, in the oral mucosa into a wrinkled paper-like, with secondary infection can also appear ulceration bleeding pain, need to stop chewing betel quid habits, local injection of retinoic acid, cryotherapy or surgical treatment. Betel nut is addictive and carcinogenic, can lead to oral cancer, it is recommended to quit chewing betel nut habit, the use of drugs need to follow the doctor’s advice.