Thrush (Candida albicans) is an infection which is caused by a yeast fungus.
The yeast fungus can live happily on the skin without causing problems as our good bacteria keeps it under control.
However, if our immune system is low or we are taking antibiotics (which lowers our levels of good bacteria) an overgrowth of the yeast may occur resulting in thrush.
Most people think of thrush as a vaginal infection, but during breastfeeding it is possible for women to get thrush on their nipples and for babies to get it in their mouths. In these cases the thrush is passed back and fourth between Mother and baby. Treatment may be required.
The breastfeeding network have designed a great fact sheet to help understandwhat signs to look out for and what treatment is recommended: