A yeast infection of the mouth is also called thrush or oral thrush. It occurs when a type of fungus, called Candida, gets out of control. This can occur for a variety of reasons, such as a weakened immune system or an imbalance of naturally occurring bacteria from the use of antibiotics. Infants are more likely to develop an oral yeast infection but they can occur in individuals of all ages.
Lesions
The most characteristic symptom of a yeast infection of the mouth is white lesions that can appear on the mouth, tongue and sometimes the gums or throat. The patches are often described as creamy in appearance and sometimes resembling cottage cheese. The skin surrounding the lesion is often inflamed. MedlinePlus indicates the lesions are likely to increase in number and size as the infection persists. The Kids Health website suggests the patches may appear on the lips in infants.
Inflammation
The throat, cheeks and other oral tissues will become red from irritation. The lesions may also bleed easily when touched.
Dryness
The mouth may feel dry or cottony during an oral yeast infection. Infants and children may have dry, cracking skin on the lips and in the corners of the mouth suggests the Kids Health website.
Discomfort
Not all individuals will experience pain, but throat soreness and other mouth pain is possible, states MayoClinic.com. Infants may refuse to suck on a pacifier, bottle or at the breast due to oral discomfort or pain. Some people may have trouble with taste or feel as if something is in the throat when swallowing.
