What causes breath-holding spells in young children?

One moment your toddler is crying hard — the next they go silent, stiffen, and their lips turn blue. It is one of the most frightening things a parent can witness, and almost always far less dangerous than it looks.

In short

Breath-holding spells happen when a young child — usually between 6 months and 3 years — gets a sudden trigger like pain, fright, frustration or anger, cries hard, and then involuntarily stops breathing on the out-breath. They are reflexive, not deliberate — your child is not doing it on purpose and cannot control it. The two common types are blue (cyanotic) spells, set off by upset or frustration, and pale (pallid) spells, set off by sudden pain or a fright. They are common, almost always harmless, and most children grow out of them by school age.

What actually causes them

A spell is an exaggerated reflex in a still-maturing nervous system — not a behaviour your child has chosen.

• Blue (cyanotic) spells — triggered by anger, frustration or hard crying. The child cries vigorously, breathes out, and then holds the breath out; oxygen briefly dips and the lips and face go bluish. This is the most common type.
• Pale (pallid) spells — triggered by a sudden shock, fright or minor knock to the head. The heart rate briefly slows (a vagal reflex), the child goes pale and limp, and may faint momentarily.
• Underlying contributors — these spells run in families, so there is often a genetic tendency. Iron deficiency (with or without anaemia) is a well-recognised factor, and correcting it can reduce how often spells happen — which is why a doctor may check iron levels.

During a spell a child may briefly lose consciousness, stiffen, or have a few jerks. This is alarming but usually passes within under a minute, after which the child recovers and breathes normally again.

When to see a doctor

Spells themselves are usually benign, but a doctor should confirm that — and rule out look-alikes. Seek a prompt medical review if: the spells started before 6 months or continue beyond 6 years, the episodes are very frequent, recovery is slow or your child seems unwell or drowsy afterwards, or there is any doubt about whether it was a spell or a seizure. Breathing that stops on its own and recovers quickly after a clear trigger is reassuring; unexplained or prolonged episodes always deserve a clinician's eyes.

The Pinnacle way

AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an article or an app. If frequent spells sit alongside any worry about how your child is developing, calming or connecting, a structured developmental check brings clarity and peace of mind. Explore how we support emotional regulation, understand what the AbilityScore is and how it is established, and learn about behaviour and emotional therapy.

Trusted sources

American Academy of Pediatrics (HealthyChildren.org) guidance on breath-holding spells; NICE clinical knowledge on paediatric breath-holding and iron status.

Next step — Frightened by a recent spell, or noticing them often? Book a gentle developmental check with a Pinnacle clinician for reassurance and a clear plan.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.