Your once-easygoing baby now cries the moment you step out of view, clings to your leg, and melts down when handed to a perfectly familiar grandparent. Nothing has gone wrong — this is one of the most reassuring milestones there is.
What separation anxiety is
Separation anxiety is the distress a baby or toddler feels when away from the person (or people) they're most attached to — usually you. It tends to emerge around 6 to 9 months, eases for some babies, then often peaks between 10 and 18 months and can ripple on through the toddler years before fading.
It appears at this age for a lovely reason. Around 6–9 months, your baby develops object permanence — the understanding that you still exist even when they can't see you. The catch is that now they know you've gone somewhere, but they don't yet grasp that you'll come back. So they protest. Loudly.
Why it's healthy, not harmful
Both the Raising Children Network and the American Academy of Pediatrics describe separation anxiety as a normal and expected part of development. The WHO guideline on improving early childhood development points to responsive, consistent caregiving in these early years as the foundation for lifelong emotional health.
Your steady, calm responses teach your baby a quiet lesson over and over: "When I need you, you come back." That predictability is what eventually lets the anxiety settle.
Gentle strategies that help
You can't switch separation anxiety off — and you don't need to. But you can soften it.
- Practise tiny separations. Pop into another room for a moment and call out so they hear you, then return. Games like peek-a-boo teach "gone, then back" in a playful way.
- Keep goodbyes short, warm and confident. A long, worried farewell tells your baby there's something to fear. A quick cuddle, a clear "Bye, I'll be back after your nap," then go.
- Always say goodbye — never sneak off. Slipping away avoids the tears but can make your baby more anxious, because they never know when you might vanish.
- Build a consistent goodbye ritual. The same hug, phrase or wave each time becomes a comforting anchor.
- Offer a comfort object for older babies and toddlers — a soft toy or muslin can bridge the gap. (Comfort objects are for awake time in the first year — keep the cot clear for sleep, as in our safe-sleep guide.)
- Let new carers warm up slowly. A few minutes of you-present play before you leave helps your baby settle.
What's typical, and what's worth a chat
| You might see | Usually normal? |
|---|---|
| Crying or clinging when you leave | Yes — very common 6mo–toddler |
| Settling within minutes once you're gone | Yes |
| Wariness of strangers or less-familiar relatives | Yes |
| Increased night waking during a clingy phase | Yes |
| Distress so intense it stops eating, sleeping or play for long periods | Worth discussing |
| Anxiety that's severe or persists well beyond the preschool years | Worth discussing |
When to talk to someone
Separation anxiety is a normal stage, but you don't have to navigate it alone. Talk to your GP or child-health nurse if your child's distress seems extreme or constant, if it's significantly disrupting feeding or sleep, if it's not easing as they grow, or simply if it's weighing on you. Trust your instincts — you know your child best, and asking is always reasonable.
Regional guidance is consistent here: AU (Raising Children Network), the US (AAP / HealthyChildren) and the WHO early childhood development guideline all describe separation anxiety as healthy and recommend warm, predictable, responsive care as the way through. The main difference between sources is wording, not substance.
Be kind to yourself, too. A baby who falls apart when you leave is a baby who is deeply, securely attached to you. That's something you built.