What Causes Yeast Infection in Babies?

Yeast infection in babies often occurs in the mouth as thrush or as a yeast diaper rash. Both conditions can have the same cause and may be hard to treat.

Before Birth

• If the mother receives antibiotics shortly before birth or during labor, the baby also receives the dose and is more susceptible to yeast infection.

At Birth

• If the mother has a vaginal yeast infection, the baby can contract it while passing through the birth canal.

After Birth

• Yeast infection can be caused by antibiotics or steroids administered to the baby.

Breastfeeding

• Breastmilk has antibodies that protect against yeast, but practices such as wearing plastic-lined nursing pads that don't allow airflow for long periods and untreated nipple cracks can cause yeast overgrowth that is passed on to the baby.

Mother's Lifestyle

• Breastfeeding mothers who take oral contraceptives and consume large amounts of dairy and sugar can increase the risk of yeast infection in their baby.

Misconceptions

• These causal factors will not cause a yeast infection in all babies, but if a yeast infection is present, it is likely because of these factors.