NOISY BREATHING IN CHILDREN: WHAT CAN BE THE REASON?

Hearing your child breathe loudly can be alarming. When you notice an unusual sound with their breath, it’s often a sign that there is some form of narrowing or partial blockage in their tiny airways. While some noisy breathing is harmless and resolves on its own, other types require immediate medical attention.

As a parent, understanding the different types of noisy breathing and their potential causes is the first step in knowing when to be concerned and when to seek help.

The Different Sounds of Noisy Breathing

Not all loud breathing sounds the same! Doctors typically classify noisy breathing into a few categories, depending on where the sound originates in the respiratory tract:

1. Stridor: The High-Pitched Whistle

Stridor is a harsh, high-pitched, turbulent sound most often heard when your child breathes in (inhalation). It usually indicates an obstruction or narrowing in the upper airway, such as the voice box (larynx) or windpipe (trachea).

2. Wheezing: The Musical Squeak

Wheezing is a whistling or musical sound that is typically heard when your child breathes out (exhalation). This sound generally points to a problem in the lower airways, specifically the smaller air passages in the lungs (bronchioles).

3. Stertor: The Snoring Sound

Stertor is a low-pitched, heavy, snoring-like noise caused by an obstruction in the nose or the back of the throat. It can often sound like a child is very congested, even when they don’t have a cold.

What Can Cause Noisy Breathing in Children?

The causes of noisy breathing in kids can range from common viral infections to structural abnormalities present since birth.

Common Causes in Infants and Newborns

  • Laryngomalacia: This is the most common congenital cause of stridor in infants. It happens when the cartilage of the voice box (larynx) is soft and floppy. When the baby breathes in, this tissue partially collapses, creating the noisy sound. It often gets worse over the first few months but usually improves and resolves on its own by 12 to 18 months.
  • Vocal Cord Paralysis: If one or both vocal cords don’t move properly, it can restrict airflow and cause stridor.
  • Congenital Subglottic Stenosis: This is a narrowing of the airway just below the vocal cords that a child is born with.

Common Causes in Toddlers and Older Children

  • Croup: A very common viral infection that causes swelling in the upper airway, resulting in a characteristic “barking” cough and stridor.
  • Asthma: A chronic condition that causes the small airways in the lungs to swell and narrow, leading to wheezing and difficulty breathing.
  • Foreign Body Aspiration: If a child accidentally inhales a small object (like a toy part or a piece of food) into their windpipe, it can cause a sudden onset of stridor or wheezing and is a medical emergency.
  • Infections: Other infections like tonsillitis or severe colds can cause swelling in the throat, leading to noisy breathing (stertor or stridor).
  • Allergic Reactions: A severe allergic reaction (anaphylaxis) can cause rapid swelling of the airway, resulting in stridor and requiring immediate emergency treatment.

When to Seek Urgent Medical Help

You should call your child’s healthcare provider immediately or go to the emergency room if your child shows any of the following signs of respiratory distress:

  • Bluish tint to the lips, face, or fingernails (cyanosis).
  • Labored breathing where you see their chest or neck pulling-in with each breath (retractions).
  • Extreme irritability
  • Not able to take feeds
  • Gasping for air or sudden, severe difficulty breathing.
  • Drooling or inability to swallow (especially with a fever), which can indicate a serious condition like epiglottitis.
  • Sudden onset of stridor after a choking episode.

Children with noisy breathing are routinely assessed, diagnosed and treated in Pediatric Pulmonology clinics. Consult an experienced and well-trained pediatric Pulmonologist for diagnosis and treatment of noisy breathing in children.