
Newborns often make unusual breathing noises, and it can be challenging to determine whether these sounds are normal or a cause for concern. Wheezing is a common symptom of infection or respiratory conditions in children, and it occurs when something blocks or narrows the lower airway passages in the lungs, causing a whistling sound. While it is often harmless, it can sometimes indicate a more serious condition. Recognising wheezing can be difficult, as the normal breathing sounds of newborns can vary significantly.
| Characteristics | Values |
|---|---|
| Wheezing | A whistling sound that occurs during exhalation |
| Caused by a blockage or narrowing of the lower airway passages in the lungs | |
| Can be caused by dried mucus, an infection, or a respiratory condition | |
| May be accompanied by other symptoms, such as a cough, fever, or difficulty breathing | |
| Can be a symptom of asthma, allergies, GERD, or other conditions | |
| Is more common in babies and children than in adults | |
| Newborn breathing | Sounds different than in older children |
| May include noisy breathing or pauses in breathing | |
| Normal breathing rate during sleep is 30-60 breaths per minute | |
| Grunting, snorting, and whistling are common | |
| May be caused by nasal congestion or small nasal passages |
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What You'll Learn

Wheezing is often caused by an infection or respiratory condition
Newborns often have noisy breathing. Their tiny lungs and nasal passages are very small, so even the smallest bit of dryness or extra mucus in their noses can make breathing noisy. Wheezing is not the same as heavy breathing, and it is often hard to tell true wheezing without a stethoscope. However, a consistent whistle-like noise, or any breaths accompanied by a rattling sound, is reason to pay close attention and see if something more is going on.
Allergies can also cause wheezing. If a baby is allergic to a substance, their body sees it as a foreign body, and their immune system responds. This response causes the airways to narrow, meaning air is forced through a smaller space. This narrowing causes a whistling sound. Babies cannot blow their nose or clear their throat, so this phlegm stays in their narrow nasal passages.
Other causes of wheezing include asthma, gastroesophageal reflux disease (GERD), and inhaling a foreign body, which can obstruct the airways.
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Allergies can cause wheezing
Wheezing is a high-pitched whistle or coarse rattling sound that occurs when breathing, usually during exhalation. It is caused by a blockage or narrowing of the airway. This is very common in babies and infants, who have smaller airways and lungs, and breathe through their noses more than their mouths.
Allergies are not the only cause of wheezing in newborns. Upper respiratory infections, or the common cold, can also cause wheezing, as can viral infections like bronchiolitis, which affect the lower airways. Infections such as these can cause the small airways of a newborn to swell and fill with mucus, leading to wheezing. In addition, conditions like asthma, GERD, and cystic fibrosis can cause wheezing.
If you are concerned about your newborn's breathing, it is important to seek medical advice. While some breathing noises are perfectly normal, others may be cause for concern. If your newborn is wheezing, take them to a pediatrician as soon as possible.
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Asthma is a common cause of wheezing
Wheezing in newborns is relatively rare, but it can be a cause for concern. Asthma is a common cause of wheezing, and recurrent wheezing episodes in infancy can be the initial signs of asthma. However, it is important to note that not all cases of wheezing in newborns are indicative of asthma.
Asthma is a condition that affects the airways, causing them to become narrow and inflamed, which can lead to wheezing, coughing, and difficulty breathing. In newborns, asthma may be caused by several factors, including respiratory infections, allergies, and even anatomical abnormalities. Respiratory infections, such as bronchiolitis, are a common trigger for asthma and wheezing. Bronchiolitis is an infection of the lower respiratory tract, causing the small airways to become inflamed and filled with mucus, leading to wheezing.
Allergies can also play a significant role in causing asthma and wheezing in newborns. Allergies can cause the body to produce extra phlegm, which, when combined with the narrow nasal passages in newborns, can lead to wheezing. Additionally, certain congenital conditions, such as primary ciliary dyskinesia (PCD), can present with asthma and wheezing in newborns.
It is important to seek medical advice if your newborn is wheezing. A doctor will be able to assess the underlying cause and determine if asthma is a factor. They may recommend medications, such as bronchodilators and inhaled corticosteroids, to help manage the symptoms and prevent future episodes. However, it is important to note that asthma diagnosis and treatment in newborns can be complex, and doctors may wait until the child is older to confirm a diagnosis.
In summary, asthma is a common cause of wheezing in newborns, but it is not the only cause. Recurrent wheezing episodes, family history of asthma, and the presence of other allergic symptoms can help doctors assess the risk of asthma in newborns. Seeking medical advice and following recommended treatments are crucial steps in managing wheezing and asthma in newborns.
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Gastroesophageal reflux disease (GERD) can cause wheezing
Newborns often experience noisy breathing, and their breathing patterns can be quite different from those of older children. Their tiny lungs and noses have only recently been introduced to inhaling air, and they breathe through their noses more than their mouths. As a result, you may hear a lot of noisy breathing, grunting, snoring, whistling, and even pauses in breathing. Most of the time, these sounds are perfectly normal and are not a cause for concern. However, certain breathing patterns and noises may warrant a call to the doctor.
Wheezing in newborns can be caused by various factors, and it is important to monitor your baby's breathing patterns to identify any unusual or concerning symptoms. Wheezing is a whistling sound caused by a blockage or narrowing of the lower airway passages in the lungs. It usually occurs during exhalation and can be distinguished from heavy breathing or occasional grunts and sighs. If your baby has an infection in their lungs, such as bronchiolitis, it can result in noisy or wheezing breathing. In addition, allergies can cause your baby's body to produce extra phlegm, which, if left uncleared, can lead to wheezing.
While wheezing in newborns can have several causes, one potential factor to consider is Gastroesophageal Reflux Disease (GERD). GERD is a condition in which the oesophagus becomes irritated or inflamed due to acid backing up from the stomach. This occurs when the lower oesophageal sphincter relaxes between swallows, allowing stomach acid to regurgitate and damage the oesophageal mucosa. GERD is not limited to adults and can also affect infants and children.
GERD has been extensively studied in relation to pulmonary diseases, including chronic cough, asthma, bronchitis, pneumonia, and interstitial fibrosis. It is estimated that over half of patients with asthma also have GERD, and the two conditions exhibit a mutual cause-and-effect relationship. In some cases, GERD can trigger asthma, especially adult-onset asthma, and it can also exacerbate existing asthma, making it more challenging to control. Additionally, asthma symptoms, such as coughing and wheezing, can further encourage GERD.
The link between GERD and wheezing is supported by studies that found a correlation between GERD and pulmonary disorders. Esophageal pH monitoring is considered the gold standard for diagnosing GERD, as it directly correlates acid reflux episodes with wheezing or other symptoms of bronchospasm. Furthermore, specific anti-reflux therapy can be used to treat GERD, and the improvement in coughing symptoms can confirm the diagnosis. While dietary and lifestyle changes are often recommended for managing GERD, medications and surgical treatments may be necessary for more severe or progressive cases.
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If your newborn is wheezing, you should seek medical attention
It is not uncommon for newborns to make unusual noises while breathing. Their nasal passages are very small, and dryness or extra mucus in their noses can cause noisy breathing. However, if your newborn is wheezing, it is important to be vigilant and seek medical attention.
Wheezing is a whistling or rattling sound produced during exhalation when something blocks or narrows the lower airway passages in the lungs. While it can sometimes be harmless, it may also indicate a severe underlying condition. Wheezing in newborns is often linked to respiratory conditions or infections. It can be a symptom of a minor ailment like a cold, the flu, or bronchiolitis, or a more serious infection like pneumonia.
Other warning signs that require urgent medical attention include your baby holding their breath for more than 20 seconds at a time, a fever in the first 28 days of life, chest congestion, a runny nose, a fever of 104°F or higher, and difficulty keeping fluids down. In addition, if your baby has inhaled a foreign body, place them in an upright position and seek urgent medical attention to prevent choking.
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Frequently asked questions
Wheezing is a common symptom of infection or respiratory conditions in children. It is often caused by a blockage in the small airways or bronchioles that carry air in and out of the lungs. While it is not usually a sign of anything serious, it is important to identify if there are other symptoms present, such as a fever, high temperature, headache, or cough, as this could indicate a chest infection or a condition like asthma.
There are many possible causes of wheezing in newborns, including asthma, allergies, gastroesophageal reflux disease (GERD), infections, and more. It is important to identify the cause of wheezing to determine the right course of treatment.
Wheezing is a high-pitched whistling sound that usually happens when your newborn breathes out. It is often possible to hear your baby wheezing, but sometimes the sound is so faint that it can only be heard through a stethoscope. Recognising wheezing can be difficult because the normal sounds that newborns make when breathing can vary.
If you think your baby needs medical treatment, talk to your pediatrician as soon as possible. A proper diagnosis is necessary to determine the treatment to help your child. If your child's breathing is laboured, or if their skin is turning blue, seek medical attention immediately as it could indicate a severe allergic reaction or serious medical condition.




























