Thrush

Thrush or candidiasis of the mouth and throat is a fungal infection that occurs when there is overgrowth of a yeast called Candidaif the environment inside the mouth or throat becomes imbalanced.
The most common symptom of oral thrush is white patches or plaques on the tongue and other oral mucous membranes. Other symptoms include: Redness or soreness in the affected area, difficulty swallowing, cracking at the corners of the mouth.
Oral thrush occurs most frequently among babies less than one month old, the elderly, and groups of people with weakened immune systems.
It is treated with prescription antifungal medication.
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Thrush

Source: Center for Disease Control

Definition

Candidiasis of the mouth and throat, also known as “thrush" or oropharyngeal candidiasis, is a fungal infection that occurs when there is overgrowth of a yeast called Candida. Candida yeasts normally live on the skin or mucous membranes in small amounts. However, if the environment inside the mouth or throat becomes imbalanced, the yeasts can multiply and cause symptoms. Candida overgrowth can also develop in the esophagus, and this is called Candida esophagitis, or esophageal candidiasis.