
If you've ever noticed your newborn sleeping with their mouth open, you may have wondered if it's something to be concerned about. While it's usually not a cause for worry, it can sometimes indicate an underlying issue. Mouth breathing in newborns can be due to several factors, such as nasal congestion, allergies, or even the position in which they sleep. In some cases, it could be a sign of sleep apnea or other medical conditions. It's important to monitor your baby's sleeping habits and look for any additional symptoms to ensure their health and well-being.
| Characteristics | Values |
|---|---|
| Normal breathing for newborns | Nasal breathing |
| Occasional mouth breathing | Not a cause for concern |
| Mouth breathing | Blockage in the upper airway, including the nose and throat |
| Mouth breathing causes | Deviated septum, enlarged tonsils or adenoids, allergies, tongue-tie, sleep apnea |
| Mouth breathing consequences | Dental and health issues, sleep problems, speech development issues, behavioural problems |
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What You'll Learn

Mouth breathing may indicate a blockage in the nasal passage
Mouth breathing in newborns is often a sign of a blockage in the nasal passage. This could be due to a common cold, allergies, or enlarged tonsils or adenoids. In some cases, mouth breathing may be caused by a deviated septum, which is when the cartilage and bone in the nose are collapsed or deformed.
Newborns rely primarily on nasal breathing to feed and sleep. If their nose is blocked, they may sleep with their mouth open to compensate for the blockage and make it easier to breathe. This is not considered normal or healthy, and it can lead to various short-term and long-term issues.
Mouth breathing can cause oral health problems, such as dry mouth and an increase in bacteria, which can contribute to bad breath and tooth decay. It can also affect speech development, as the tongue may not be able to position itself correctly, leading to difficulties pronouncing certain letters.
Additionally, mouth breathing can result in behavioural problems, including irritability, excessive crying, and a lack of sleep. It can also increase the risk of respiratory infections, as the nose has natural mechanisms to filter and humidify the air.
If your newborn is a frequent mouth breather, it is important to consult a healthcare professional to determine the underlying cause and receive guidance on any necessary treatments.
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It could be a sign of sleep apnea
Newborns typically breathe through their noses. If your newborn is moving their mouth when sleeping, it could be a sign that their nose is blocked. This could be due to a common cold, allergies, or a more complex condition. Mouth breathing during sleep can sometimes be a critical clue to your baby's health.
Mouth breathing is also a sign of sleep apnea, which means that your baby's upper airway is obstructed. This could be caused by enlarged tonsils or adenoids, or an abnormality in the cartilage and bone that separates your baby's nostrils. If your baby is snoring, coughing, choking, or experiencing pauses in their breathing, restlessness, and daytime sleepiness, these are also symptoms of sleep apnea.
Sleep apnea is a rare condition in newborns, but it is important to consult a doctor or pediatrician if you are concerned. They may recommend treatment options such as positive airway pressure therapy with CPAP and BPAP machines, which involve blowing air slowly through a mask that your child wears to sleep.
If your baby is breathing through their mouth, it is important to monitor their sleeping habits and overall health. Mouth breathing can lead to various health issues, including oral health problems, speech development issues, and behavioural problems. It can also cause long-term changes in facial structure, such as dental alignment problems and facial deformities.
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Allergies could be the cause
Newborns typically breathe through their noses, almost exclusively. However, if your newborn is moving her mouth while she sleeps, it could be because she is breathing through her mouth. Mouth breathing in newborns usually occurs when there is an obstruction in their nasal passage, often due to a stuffy nose or a cold. In other cases, it could be due to problems with their bite and mouth structure, where the shape of the jaw may prevent the mouth from closing properly.
If your newborn is breathing through their mouth, it is important to address this issue as it can have long-term health consequences. Mouth breathing can cause dental health issues, such as tooth decay, and can also lead to changes in facial structure. Additionally, it can affect your newborn's speech development and cause behavioural problems, including irritability and lack of sleep.
If you suspect that allergies are causing your newborn to breathe through their mouth, it is important to consult a doctor or pediatrician. They can advise you on the necessary testing and treatment options, such as medications or allergy management techniques, to help alleviate your newborn's symptoms and improve their breathing.
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It may be due to problems with bite and mouth structure
Mouth breathing is often due to some sort of blockage of the nasal passage, typically caused by congestion, colds, or allergies. However, if your child is mouth breathing and does not have a blocked nasal passage, it could be due to problems with their bite and mouth structure.
The shape of your child's jaw may prevent them from correctly closing their mouths, leading to what is known as open-mouth breathing. This can cause a series of modifications in functions and structures, such as tongue-tie, which can affect various oral functions such as eating, sucking, chewing, swallowing, and speaking.
Prolonged mouth breathing can also affect the development of the teeth and jaw, leading to dental alignment problems, malocclusions, and facial deformities. The palate, which is crucial for providing space for teeth to grow, depends on the positioning of the tongue to widen and form its shape. Therefore, mouth breathing can result in a high and narrow palate, which can further lead to obstructed nasal passages and breathing difficulties.
If you suspect that your baby is a mouth breather and is experiencing related problems, it is recommended to consult a speech and language therapist with expertise in myofunctional therapy.
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Mouth breathing can lead to dental and health issues
Newborns typically breathe through their noses, and young babies have not yet developed the reflex to breathe through their mouths until they are around three to four months old. Mouth breathing in newborns could be due to some type of blockage in the upper airway, such as the nose or throat, which could be caused by a stuffy nose or a more complex condition.
If left untreated, mouth breathing can lead to long-term dental and health issues. Here are some of the potential issues that can arise:
Dental Issues
Mouth breathing can lead to oral health problems, such as an increased risk of tooth decay (cavities), gum disease, and halitosis (chronic bad breath). This is because mouth breathing dries up saliva, which is important for neutralizing the highly acidic plaque that forms when oral bacteria come into contact with food. Additionally, it can cause strain on the jaw joints, an improperly fitting bite, and other jaw issues that may require complex orthodontic treatment or oral surgery to correct. In children, mouth breathing can also lead to facial deformities and crooked teeth.
Health Issues
Mouth breathing can also impact overall health. Since the nose acts as a filter to remove toxins from the air, breathing through the mouth can inhibit the removal of toxins, affecting the transfer of oxygen throughout the body. This can lead to sleep disorders, including sleep apnea, which is characterized by symptoms such as snoring, restlessness during sleep, pauses in breathing, coughing, and choking. Sleep apnea has been linked to learning and behavioral problems in children.
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Frequently asked questions
Newborns typically breathe through their noses. If your newborn is moving her mouth when she sleeps, it could be a sign that her nose is blocked. This could be due to a common cold, allergies, or enlarged tonsils or adenoids.
If your newborn is breathing through her mouth, you should try to clear her nose of any mucus. You can do this by using a few drops of saline solution and a bulb syringe to gently relieve congestion. If your newborn continues to breathe through her mouth, you should consult a healthcare professional.
Yes, chronic mouth breathing can lead to changes in facial structure, dental issues, problems with speech development, and sleep problems.
Mouth breathing can cause your baby to snore, cough, choke, and be restless during sleep. It can also lead to behavioural issues, such as irritability and a lack of focus.











































