Although oral thrush can affect anyone, it's more likely to occur in babies and older adults because they have reduced immunity; in other people with suppressed immune systems or certain health conditions; or people who take certain medications.

What causes adults to get thrush?

Thrush in adults is caused by an overgrowth of the yeast Candida Albicans that can be caused by diabetes, medications, radiation or chemotherapy, immune system disorders, and some oral health conditions. Thrush is a fungal infection that occurs in your mouth and throat.

What does oral thrush look like in adults?

Thrush is characterized by a white coating or white patches on the tongue, mouth, inner cheeks, and back of the throat. The tissue under the white patches is often red, raw, and sore. The lesions can be painful and even bleed when scraped. Oral thrush often looks like cottage cheese or milk curds.