Symptoms of oral Candida albicans infection include:1. In infants and young children, large white spots or patches appear in the oral mucosa, palate and uvula, also known as snow mouth disease and thrush. The white spots are not easy to wipe, and the bright red trauma will be exposed after removing them with force.2. Patients who wear movable denture for a long time will be in the mucous membrane covered by the abutment, and grayish-white pseudomembrane occurs, accompanied by redness, swelling, and pain, and sometimes ulcers are formed, which affects mastication and eating.3. Patients with poor body resistance or long-term application of antibiotics will have obvious atrophy of filiform papillae on tongue, and buccal and tongue and other parts of the mouth will be covered with thickening of the white membranous material.