Why does my baby develop oral thrush?

Oral thrush, often called thrush, is a common mouth infection in newborns. This condition is caused by a microscopic fungus called candida albicans. But why does this problem particularly affect babies? Let us explore together the potential causes and offer some practical advice for preventing and managing this condition.

The main causes of oral thrush in newborns

Several factors can contribute to the development of oral thrush in a baby. Understanding these reasons can help to better manage and prevent this unpleasant condition.

Immature immune system

The immune system of newborns is not yet fully developed. As a result, it is less effective at fighting infections, including those caused by candida albicans. This fungus thrives in warm, moist places such as your baby's mouth, especially if their immune system is not working as well as it should.

Furthermore, the proliferation of the fungus can be encouraged when the baby is going through a period of stress or fatigue, two states that further weaken their natural defences.

Transmission during childbirth

It is common for babies to contract thrush during childbirth if the mother has a vaginal yeast infection. During the passage through the birth canal, the baby can come into contact with the fungus, which then begins to proliferate in their mouth.

This highlights the importance of antenatal and postnatal care. Early detection of a yeast infection in the mother can allow measures to be taken to reduce the risk of transmission to the newborn.

Environmental factors contributing to oral thrush

In addition to the internal reasons related to human development, external factors can also increase the risk of oral thrush in newborns.

Cleanliness of objects used by the baby

The hygiene of objects that come into contact with the baby's mouth plays a crucial role. Poorly washed bottles, inadequately sterilised dummies, or even the mother's breasts can be vectors of candida albicans.

Take care to clean regularly all objects that your baby puts in their mouth. Use boiling water to sterilise bottles, teats, and other accessories in order to minimise the risk of infection.

Prolonged use of antibiotics

Antibiotic treatments can disrupt the natural balance of micro-organisms present in the mouth. Whilst eliminating harmful bacteria, antibiotics can also kill some of the beneficial bacteria responsible for keeping the amount of yeast at a normal level. This would therefore create an environment conducive to the proliferation of the candida albicans fungus.

Also, be vigilant about the prolonged use of antibiotics in your child and always discuss possible alternatives with your paediatrician.

Thoroughly clean every object that comes into contact with your baby's mouth: dummies, bottles, toys.

Maintain good breast hygiene, especially if you are breastfeeding. Clean your nipples before and after every feed.

Limit the use of antibiotics to avoid disrupting the natural flora of your baby's mouth.

Symptoms of oral thrush in babies

Identifying the symptoms of oral thrush early can prevent complications and speed up treatment.

Appearance of white patches

A classic sign is the presence of white patches on the tongue, the inside of the cheeks, and possibly even on the palate and gums. These patches do not come off easily and are sometimes accompanied by redness or slight bleeding.

If you notice these signs, it is recommended to see a doctor promptly to obtain a precise diagnosis and begin appropriate treatment.

Irritability and refusal to feed

A baby with oral thrush may become more irritable and refuse to eat due to the pain or discomfort caused by the patches. They may cry during feeds or appear unsettled.

In advanced cases, this can lead to weight loss and other nutritional problems. Keep a close eye on these behaviours and make an appointment with a healthcare professional if necessary.

Treatment options and management of oral thrush

Fortunately, several options exist to treat oral thrush in newborns effectively.

Antifungal medications

Doctors generally prescribe antifungal medications in the form of a gel or oral liquid. These must be applied directly to the affected areas.

Follow the instructions provided by the healthcare professional carefully. Do not discontinue the treatment before the recommended duration even if the symptoms appear to disappear quickly.

Good practices to relieve symptoms

In addition to antifungal medications, certain simple actions can provide notable relief:

Sterilise utensils and toys regularly to kill any potentially harmful germs.

Maintain good hand hygiene before touching your baby's mouth.

Use sterile compresses soaked in cooled boiled water to gently clean the affected areas after administering medication.

These practices, combined with appropriate medical follow-up, should help to reduce your baby's discomfort and speed up their recovery.

Long-term prevention of oral thrush

Prevention is always better than cure. Adopting preventive measures can therefore considerably limit the risk of oral thrush appearing in newborns.

Breastfeeding and diet

One good way to prevent oral thrush is through breastfeeding. Breast milk contains antibodies and other beneficial compounds capable of strengthening your baby's immune system.

During weaning, take care to introduce solid foods gradually, checking their tolerance and avoiding those that may encourage the growth of unwanted yeasts.

Care of the baby's personal items

Furthermore, always prioritise impeccable hygiene for items that regularly come into contact with the newborn's mouth.

Here is a list of additional recommendations:

Never use a product intended for household cleaning on bottles or other items used by the baby.

Replace worn dummies frequently and favour those made of silicone, which are known to be more resistant to germs.

Avoid sharing utensils between adults and children to prevent the inadvertent transfer of bacteria.

Consultations and follow-up

Finally, never underestimate the importance of regular medical follow-up. Frequent visits to the paediatrician allow you not only to benefit from sound advice but also to quickly detect any potential anomaly requiring intervention.

To summarise, oral thrush remains a relatively common and generally mild condition in newborns. Thanks to a thorough understanding of the causes and the implementation of appropriate preventive measures, it becomes possible to minimise the risks associated with this infection and to ensure the comfort and health of your baby.