Coughing in Infants
A baby's reflex to clear the airways, usually from a cold
Quick Facts
- Type: Respiratory symptom in infants
- Most common cause: Viral colds
- Watch closely: Babies under 3 months
- Emergency: Trouble breathing or blue color
Overview
Coughing in infants is the body's natural way of clearing mucus, irritants, or fluid from the airways. Most infant coughs are caused by common viral colds and, although they can sound distressing, are usually not dangerous and clear up on their own. Babies cannot blow their noses, so coughing and congestion often go together.
Because infants have small airways and cannot tell you how they feel, it is important to watch how a baby is breathing, feeding, and behaving overall. Coughing with fast or labored breathing, a bluish color, or feeding difficulty needs urgent medical attention, and any cough in a baby under three months should be checked by a doctor. A cough is a symptom, and the surrounding signs guide how concerned to be.
Common Causes
Most infant coughs are caused by infections, but other factors can play a role.
- Viral colds: By far the most common cause, often with a runny nose and congestion.
- Bronchiolitis: A viral infection of the small airways common in babies, causing cough, wheezing, and fast breathing.
- Croup: A viral infection that causes a distinctive barking cough and noisy breathing.
- Whooping cough: Pertussis causes severe coughing fits and can be serious in young infants; vaccination protects against it.
- Reflux: Stomach contents coming back up can irritate the airway and cause coughing.
- Irritants: Tobacco smoke and other airborne irritants can trigger coughing.
- Choking on an object: A sudden cough while playing or eating may mean something was inhaled.
Associated Symptoms
The signs that come with an infant's cough help reveal the cause and how serious it is:
- Congestion or a runny nose
- Fever
- Wheezing or noisy breathing
- Fast or labored breathing, with the chest or ribs pulling in
- A barking cough (croup) or coughing fits (whooping cough)
- Feeding difficulty or fewer wet diapers
Diagnosis & Evaluation
A clinician usually evaluates an infant's cough through examination and history. They may:
- Ask how long the cough has lasted, what it sounds like, and what other symptoms are present
- Listen to the chest and breathing and check the baby's breathing rate and effort
- Measure oxygen levels with a small sensor
- Check temperature and overall hydration
- Order a chest X-ray or other tests only when a specific concern arises
The sound of the cough and the baby's breathing effort are especially important clues.
Treatment & Management
Most infant coughs from colds get better with supportive care at home. Do not give over-the-counter cough and cold medicines or honey to babies; these are not safe for infants.
- Keep the airway clear: Use saline nose drops and a bulb syringe to gently clear a stuffy nose, especially before feeds.
- Humidity: A cool-mist humidifier can ease congestion and coughing.
- Fluids: Continue regular breast or formula feeds to keep the baby hydrated.
- Comfort and rest: Hold and soothe your baby and keep them away from smoke.
- Treating specific causes: Conditions like whooping cough need medical treatment, and any bacterial infection is treated as directed by a clinician.
Self-Care & Prevention
Many infant coughs come from preventable infections, and some simple steps lower the risk:
- Wash hands often: Frequent handwashing by anyone handling the baby reduces the spread of cold and other viruses.
- Limit exposure to sick people: Keep young infants away from people with coughs and colds, especially in the first months.
- Keep up with vaccines: On-schedule immunizations, including those protecting against whooping cough, help prevent serious illness; vaccination during pregnancy also protects newborns.
- Avoid smoke: Keep your baby away from tobacco smoke and other strong irritants, which can trigger coughing.
- Keep small objects away: Store coins, small toy parts, and similar items out of reach to prevent choking and inhalation.
- Breastfeed if possible: Breast milk provides antibodies that help protect against infections.
When to See a Doctor
Call your local emergency number or seek emergency care immediately if a baby:
- Is struggling to breathe, breathing very fast, or the chest, ribs, or neck pull in with each breath
- Turns blue or gray around the lips or face
- Has long pauses in breathing or becomes limp or unresponsive
- Coughs suddenly and may have inhaled an object
Also contact a doctor promptly for any cough in a baby under three months, a cough with fever, poor feeding, fewer wet diapers, a barking or whooping cough, or a cough that lasts more than a couple of weeks. When in doubt about a young baby, seek medical advice.
Frequently Asked Questions
When should I worry about my baby's cough?
Seek emergency care if your baby is struggling to breathe, breathing very fast, has the chest or ribs pulling in, turns blue around the lips, or has pauses in breathing. Also call a doctor for any cough in a baby under three months, or a cough with fever or poor feeding.
What can I give my baby for a cough?
Do not give over-the-counter cough and cold medicines, which are not safe for infants, and do not give honey to babies under one year. Instead, use saline nose drops and a bulb syringe to clear the nose, run a cool-mist humidifier, and keep up regular feeds.
Is a barking cough in a baby serious?
A barking, seal-like cough often means croup, a viral infection that causes swelling in the upper airway. Mild croup can be managed at home, but if your baby has noisy breathing at rest, struggles to breathe, or turns blue, seek emergency care.
Could my baby's cough be whooping cough?
Whooping cough (pertussis) causes severe coughing fits, sometimes with a whooping sound, and can be dangerous in young infants. It needs medical treatment. Vaccination during pregnancy and on schedule for the baby helps protect against it. See a doctor if you suspect it.
How long should an infant's cough last?
A cough from a common cold often lingers for one to two weeks as the airways recover. Contact a doctor if the cough lasts longer than two weeks, gets worse, or comes with fever, breathing trouble, or poor feeding.
References
- American Academy of Pediatrics (AAP). HealthyChildren.org.
- MedlinePlus, U.S. National Library of Medicine.
- Centers for Disease Control and Prevention (CDC).
- Mayo Clinic. Cough.