Adult gums white like rotten may be oral mucosa white spot, oral candidiasis, oral lichen planus and other diseases caused by the cause of the need to take medication, other treatments, surgical treatment. 1. Oral mucosal leukoplakia: common symptoms include the presence of milky white or grayish white patches on the gums, palate, etc. Patients need to follow the doctor’s instructions to use vitamin A acid, vitamin E or cod liver oil and other drugs. Secondly, other treatments such as semiconductor laser, cryotherapy and photodynamic therapy can also be taken. If conservative treatment is not effective, surgical excision should be considered. 2. Oral candidiasis: the typical symptom is that white milky gelatinous spots or plaques can be seen in the oral cavity, as if they are rotten. Patients need to follow the doctor’s instructions for local use of 2% to 4% sodium bicarbonate solution, 0.2% chlorhexidine solution and other drugs. Itraconazole, fluconazole and other antifungal drugs should also be taken orally as prescribed by the doctor. For patients with ineffective drug treatment or severe hyperplasia, surgical excision should be considered. 3. Oral lichen planus: clinical symptoms are mainly manifested as white streaks of damage to the oral mucosa, which can be manifested as white gums like rotten. Patients need to comply with the medical advice of local use of 0.1% vitamin A ointment, as well as ashwagandha and other antifungal drugs, as well as hydroxychloroquine and other drugs. For severe symptoms, glucocorticoids such as dexamethasone and betamethasone or immunosuppressants such as tacrolimus and cyclosporine should be used as prescribed by the doctor. Secondly, physical measures such as carbon dioxide laser treatment and liquid nitrogen freezing can also be taken for treatment. When the adult gums white like rotten need to go to the hospital in time, with the doctor actively treat the primary disease.