What is baby thrush?
Emily Carr
Published Apr 21, 2026
What Is Thrush? Thrush is a fungal infection of the mouth that can affect anyone at any age, but it's especially common in small babies, especially those younger than 6 months. The fungus that causes thrush is a kind of yeast called candida that can live anywhere on the body, even in the mouth and digestive tract.
How does a baby get thrush?
Thrush often occurs when mother or baby has taken antibiotics. Antibiotics treat infections from bacteria. They can also kill "good" bacteria, and this allows yeast to grow. The yeast thrives in warm, moist areas.How do you get rid of thrush in babies?
Thrush is easily treated with an antifungal medicine such as nystatin (Mycostatin®), fluconazole (Diflucan®), or itraconazole (Sporanox®). Your child may get these medicines as a syrup or a pill. Thrush usually clears up in 4 to 5 days.What baby thrush looks like?
Signs of thrush in a baby include white, velvety patches over their tongue and inner cheeks, redness or bleeding in the mouth, crying or fussiness, difficulty feeding, and, sometimes, a diaper rash. Nursing mothers may also develop a yeast rash on their nipples.Is baby thrush serious?
While thrush isn't serious, it's certainly unpleasant for your baby — and for you. Those shooting pains can take all the joy out of breastfeeding. So if the symptoms of thrush persist, pay your pediatrician a visit.Thrush in babies
Is thrush in babies painful?
Is oral thrush painful for babies? Oral thrush can give some babies a sore mouth and make it painful or uncomfortable to feed, but many babies don't feel anything.Does thrush make babies fussy?
Cracking and redness at the corners of the mouth is another sign of thrush in babies. Fussiness. While some babies are largely unaffected by thrush, others may experience pain while eating and become more fussy than usual, Posner says.Can bottle fed babies get thrush?
Did you know one of the most common transmission methods occurs during feeding time? Unfortunately, it's true. Whether bottle or breast-feeding, because Candida albicans thrives on milk, the method of delivery doesn't really matter much. Either way, your child could end up with oral thrush.How long does it take for baby thrush to go away?
Oral thrush in infants often disappears within 2 weeks, and parents or caregivers may be advised to monitor the infection, without using medication. Sometimes, a doctor will prescribe drops or a gel that must be spread around the inside of the mouth, not just put on the tongue.How common is thrush in babies?
Since thrush is usually picked up at birth, it's most common in newborns and babies under 2 months. Older babies can also develop thrush if they've been taking antibiotics to fight another infection (which kills off the "good" bacteria that keep yeast in check) or have a depressed immune system.Can thrush go away on its own baby?
White Tongue Alone: Not ThrushIt will go away after your baby starts eating solid foods. If white patches occur inside the lips or cheeks, call your child's doctor.
Is it thrush or milk tongue?
One of the easiest ways to tell the difference is to try and wipe off the residue with a warm, damp cloth. If the residue comes off or becomes less noticeable, you're dealing with milk residue and not thrush. Keep in mind that milk residue is more noticeable after feedings and only appears on the tongue.Can thrush clear up on its own?
Can thrush go away on its own? Often mild yeast infections and their symptoms will go away on their own without treatment, although this could take 3-7 days. If you have been experiencing thrush symptoms for 7-14 days then you should seek medical treatment.Is baby thrush contagious?
While oral thrush in adults is not considered contagious, thrush can be passed back and forth from mother to infant during breast-feeding. Mothers can have yeast on the nipple that is spread to the infant, or the infant passes thrush to the nipples during breast-feeding. Both may need to be treated.What does thrush on nipples look like?
There are usually no obvious signs of thrush on your nipples. However some signs may be present and include: your nipples may appear bright pink; the areola may be reddened, dry or flaky. Rarely a fine white rash may be seen.How do you know if you and your baby have thrush?
Symptoms of oral thrush in breastfed babiescreamy white spots or patches on the tongue, gums, roof of the mouth or insides of the cheeks – if you gently wipe these patches with a clean cloth, they won't come off. your baby being unsettled when feeding. a white film on the lips.