How common is Separation Anxiety Disorder in children?

Worry about being apart is part of growing up — it only becomes a 'disorder' when the fear is big enough to get in the way of ordinary life.

In short

Separation Anxiety Disorder (SAD) is one of the most common anxiety conditions in childhood, affecting roughly 4 in 100 children (around 4%), and it is most often seen in younger children before the teenage years. To be clear, some separation worry — clinginess at drop-off, tears when you leave — is completely normal and healthy at certain ages; it only becomes a clinical concern when the distress is intense, lasts for weeks, and stops a child from sleeping, attending school or enjoying everyday life. With the right understanding and support, the great majority of children do very well.

Understanding how common it is

• A normal stage first. A burst of separation worry between roughly 8 months and 3 years is an expected, healthy part of development — a sign your child has formed a strong bond with you.
• The disorder is less common. When the fear is severe, persistent and disabling, it is recognised as Separation Anxiety Disorder. Around 4% of children are affected, making it one of the more frequent childhood anxiety presentations.
• It tends to appear earlier than other anxieties. SAD often shows up in primary-school years and is slightly more common in younger children than in adolescents.
• It is very treatable. Most children respond well to gentle, structured support and family-based strategies — being common does not mean it is something to fear.

When to seek a check

Consider a developmental and emotional check if your child's separation fear lasts four weeks or more, is far stronger than that of other children the same age, and is interfering with school attendance, sleep, friendships or family life — for example, repeated refusal to go to school, distressing nightmares about separation, or physical complaints like tummy aches before being apart from you.

The Pinnacle way

AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an app, quiz or online form. Our clinicians use a structured, clinician-administered assessment to understand your child's emotional and adaptive strengths and plan warm, family-centred support. Explore how we help children grow , read about the AbilityScore, and learn how behaviour and emotional therapy builds confidence around being apart.

Trusted sources

WHO ICD-11 framing of separation anxiety disorder; American Academy of Pediatrics (HealthyChildren.org) guidance on childhood anxiety and separation; NICE guidance on anxiety in children and young people.

Next step — Wondering whether your child's worry is more than a normal stage? Book a gentle developmental and emotional check with a Pinnacle clinician.

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