Thrush - one of the most common fungal infections. The scientific name comes from the name of the genus candida yeast whose activity (data yeasts are opportunistic) and leads to the emergence of the disease.
Candida yeast in the presence of a human body itself is not dangerous, as they are part of the natural microflora in the intestinal tract concentrating and mouth area; However, their excessive multiplication or the appearance of the pathogenic subspecies of yeast data causes thrush.