Thrush (thrush), also known as snow mouth disease white candidiasis (moniliasis), goose mouth, snow mouth, goose mouth chancre, goose mouth white sores. It is a fungal infection that forms a white patchy film on the surface of mucous membranes mostly seen in infants and young children. The disease is caused by Candida albicans infection. The fungus can sometimes be found in the mouth and can develop when the infant is malnourished or weak. In newborns, it is most often spread by infection from the birth canal, or by contamination from unclean nursing teats or the fingers of feeders. Thrush is a common disease of the oral cavity in children. This disease occurs because often a white pseudomembrane occurs in the oral cavity and sometimes this pseudomembrane is as white as a piece of snow. That is why it is called snowy mouth disease. It is caused by Candida albicans, one of the many microorganisms that usually occur in infants with unclean, malnourished mouths, and also in frail adults. The common symptoms of thrush are as follows: 1, the oral mucosa appears milky white slightly elevated plaque film, no inflammatory reaction around, shaped like a milk lump without pain, after wiping away the plaque film, visible below the red trauma without bleeding plaque film size varies, can appear on the tongue, cheek palate or lip mucosa; 2, good in the buccal tongue, soft palate and mouth and lip mucosa, white plaque is not easy to wipe off with cotton swabs or wet gauze; 3, when the infection is mild unless 3. When the infection is mild, it is not easy to find unless the mouth is carefully examined, and there is no obvious pain or only painful expression when eating. In severe cases, the baby will be irritable due to pain, poor appetite crying, nursing difficulties, sometimes accompanied by a mild fever; 4, the damaged mucosa treatment is not timely can continue to expand to the pharynx, tonsils, gums and other more serious lesions can spread to the esophagus, bronchus, causing Candida esophagitis or pulmonary candidiasis appear breathing, swallowing difficulties, a few can be complicated by chronic mucosal skin candidiasis can affect lifelong immune function. Even other bacterial infections can be secondary, resulting in sepsis. In mild cases, the oral mucosal surface is covered with white milky clot-like dots or small flakes, which can gradually fuse into a large area, not easy to wipe off. It may be accompanied by low fever, refusal to eat and difficulty in swallowing. Take a small amount of white film and put it on a slide with a drop of 10% sodium hydroxide, the fungal hyphae and spores can be seen under the microscope.