A group of microbes called fungus, specifically Candida albicans, causes oral thrush, a yeast infection in the mouth. This leads to the condition known as Candidiasis.

A healthy individual possesses small amounts of Candida in his/her mouth. Presence of other microorganisms keep the Candida growth under control. However, illnesses, stress and medications can cause Candida to reproduce at a faster pace which leads to imbalance between healthy microorganism and consequently Candidiasis takes place. A white tongue with a thick white coating is indicative of presence of thrush in a mouth. It is common in babies, elderly persons and patients having compromised immunity. Its occurrence may be triggered by; using medicines like antibiotics and steroid, having diseases like HIV and Diabetes and during pregnancy. Taking probiotic edibles help balance the bacteria present in a digestive tract and reduce candida colonies. It is treated with antifungal medicines taken over 10 to 14 days.