What causes thrush?

Updated: Jan 17, 2019
  • Author: Mudra Kumar, MD, MRCP, FAAP; Chief Editor: Russell W Steele, MD  more...
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Consider an underlying immune deficiency such as AIDS, especially in recurrent cases and in older infants. For chronic infection, chronic mucocutaneous candidiasis should be considered.

Systemic antibiotic use may disrupt the normal flora, promoting candidal overgrowth.

Use of systemic and inhaled steroids is associated with increased incidence of oral thrush.

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