Cause
This infection is caused by an overgrowth of a fungus called Candida albicans in the vagina. Candida is yeast, which is a type of fungus.
Yeast are always present in the vagina in small numbers, and symptoms only appear with overgrowth. Candida can multiply when an imbalance occurs, such as when the normal acidity of the vagina changes or when hormonal balance changes. When that happens, symptoms of candidiasis may appear.