The white sticky stuff on the lips may be caused by the shedding of the lip mucosa. If the white sticky stuff often appears, it is likely that the patient often likes to eat over-stimulating or too hot food, resulting in a certain damage to the lip mucosa, which is shed in time, and it is recommended that the patient try to avoid eating over-stimulating or too hot food to avoid causing other lesions on the lips. If the white sticky stuff gradually increases, it is recommended to visit the stomatology department so that the doctor can scrape it off and conduct a section examination to determine what it really is. It may be a Candida infection, which usually occurs easily in the body of patients with very low resistance or AIDS, and is a fungal infection that requires specialized treatment.