Health4 min read

Baby’s breathing: what’s normal, what’s not

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Quick answer: New parents spend a lot of time watching their baby breathe — often with anxiety, and often at 3am.

New parents spend a lot of time watching their baby breathe — often with anxiety, and often at 3am. Understanding what’s normal (and what isn’t) replaces fear with knowledge.

Normal Newborn Breathing: What to Expect

Newborn breathing is distinctly different from adult breathing: Rate: Newborns breathe 40–60 times per minute at rest (adults breathe 12–20 times). Rapid breathing is normal. Irregularity: Newborns breathe irregularly — the pattern alternates between rapid breaths, shallow breaths, and brief pauses. This is normal respiratory variability driven by the immature respiratory centre. Periodic breathing: Brief pauses in breathing lasting 5–10 seconds, followed by a burst of rapid breaths, then normalising. This is normal in the first few weeks and should not last longer than 10 seconds or be accompanied by colour change. Noisy breathing: Newborn nasal passages are tiny — congestion, mucus, and narrow passages create gurgles, snuffles, and snorts. Normal as long as baby is feeding well and not appearing to work hard to breathe.

Normal Breathing Rates by Age

  • Newborns (0–6 weeks): 40–60 breaths per minute
  • Infants (6 weeks–12 months): 30–50 breaths per minute
  • Toddlers (1–2 years): 25–40 breaths per minute
  • These are at-rest rates — all increase with crying, feeding, and activity

Warning Signs: When Breathing Is Not Normal

Respiratory rate above 60 breaths per minute at rest: Count for a full 60 seconds when baby is calm — consistently above 60 warrants evaluation. Nasal flaring: Nostrils widening with each breath — a sign of respiratory effort. Chest recession: Skin pulling in between the ribs (intercostal recession), under the ribs (subcostal recession), or at the base of the throat (sternal recession) with each breath — indicates significant work of breathing. Grunting: An expiratory grunt with each breath — baby is trying to keep their airways open. Cyanosis: Blue or dusky colour around the lips or fingernails — indicates low oxygen levels. Any cyanosis is an emergency. Apnoea: Breathing pause lasting more than 20 seconds, or a shorter pause with colour change or limpness — emergency. Stridor: High-pitched noise on breathing in — indicates upper airway narrowing.

Common Causes of Breathing Changes

Croup: Viral infection causing laryngeal swelling — classic barky cough, stridor, often worse at night. Most cases manageable at home with cool air; moderate-severe cases need steroids. Bronchiolitis (RSV): Wheezing and respiratory distress in babies — see RSV guide. Pneumonia: Bacterial or viral lung infection — fever, increased respiratory rate, reduced feeding. Laryngomalacia: Floppy laryngeal tissue causing inspiratory stridor from birth, typically improving by 12–18 months. Foreign body: Sudden onset choking and respiratory distress — always an emergency.

Frequently Asked Questions

My baby breathes so fast — how do I know if it’s too fast?

Count the breaths per minute when baby is completely calm and ideally asleep. Place your hand on their chest and count the rises. Count for a full 60 seconds (breaths per minute). More than 60 consistently when resting is above normal. If you’re finding a rate of 70–80 breaths per minute consistently, contact your GP or health visitor.

My newborn stops breathing for a few seconds and then starts again — is that apnoea?

Brief pauses of 5–10 seconds followed by resumption of breathing are called periodic breathing — a normal pattern in the first weeks. These should not last more than 10 seconds and should not be accompanied by any colour change. If the pause lasts 20+ seconds, if baby changes colour (blue, pale), or becomes limp — this is true apnoea and requires emergency evaluation.

My baby makes a rattling noise when breathing — is their chest congested?

Noisy breathing in newborns is almost always from the upper airway — nasal congestion, mucus in the throat, and the narrow nasal passages of newborns. Genuine lower airway (lung) wheeze is a different sound — more of an expiratory wheeze with laboured breathing. Saline nasal drops and gentle suction clear upper airway noise effectively. If breathing appears laboured (recession, flaring) alongside the noisy breathing, seek evaluation.

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Medical context only

This content supports decision-making but does not replace advice from your GP, midwife, health visitor or paediatric clinician.