A doctor can typically diagnose thrush in a baby simply by sight, as the condition is easy to identify, explains MedlinePlus. Thrush is a type of yeast infection that is often passed between a baby and mother during breastfeeding.
Some of the main symptoms of thrush in newborns include white sores and redness in the mouth, according to MedlinePlus. In some cases, these sores may bleed when wiped, and a baby may refuse to feed due to pain, but pain is not always a symptom. Other symptoms of thrush include diaper rash and mood changes.
The mother may also present symptoms of thrush, including cracked, sore nipples and pain during and following nursing, claims MedlinePlus. Many babies do not need treatment for thrush, as it often goes away on its own. If medication is given, it is usually an antifungal medication that is painted on the tongue and around the mouth. If both mother and child have the condition, both need to be treated at the same time, or the infection may pass back and forth. Thrush is very common in infants and is usually not dangerous, but if the condition keeps returning, it can indicate an underlying health condition.