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A summary of causes, symptoms and treatments of oral thrush, an infection of the mouth most often found in infants during the first year of life.

Key points

  • Oral thrush is a yeast infection of the mouth.
  • The infection occurs most often in babies during the first year of life.
  • White lesions that look like cottage cheese may form on the tongue or other parts of the mouth.
  • Infected breast-feeding women may have red or sensitive nipples.
  • Antifungal gel or drops are used to treat the infection.
  • In order to prevent another infection, sterilize baby bottles and thoroughly clean nipples.
Last updated: March 5th 2010