Pseudomembranous yeast that is Candida, Candida infection in the oral cavity generally manifested as Candida stomatitis, can be divided into acute pseudomembranous Candida stomatitis, acute erythematous Candida stomatitis, chronic erythematous Candidiasis. 1. Acute pseudomembranous Candida stomatitis: the mucous membrane in the damaged area is congested with blood, and there are scattered soft small spots with white color like snow, which can be fused into white velvet-like patches later. 2. Acute erythematous Candida stomatitis: diffuse erythema on the mucous membrane with the tongue mucous membrane being the most common. 3. Chronic erythematous candidiasis: most common in denture bearing area, mucosal congestion is point-like or sheet-like erythema and edema, severe cases with granular or papillary hyperplasia. Oral candida infection may have other symptoms, it is recommended to go to the hospital in a timely manner, and receive regular treatment as soon as possible.