what is oral thrush
Oral thrush occurs when a yeast infection develops on the inside of your mouth and on your tongue. This condition is also known as oropharyngeal candidiasis. Oral thrush is caused by the fungus Candida albicans.A small amount of this fungus normally lives in your mouth, but is kept in check by your immune system.An infection develops when the fungus overwhelms your bodyâs ability to control it.Oral thrush occurs most often in infants and toddlers.his condition is also known as oropharyngeal candidiasis. Oral thrush is caused by the fungus Candida albicans. A small amount of this fungus normally lives in your mouth, but is kept in check by your immune system. An infection develops when the fungus overwhelms your bodyâs ability to control it.