Toddler

Why has my toddler suddenly become clingy?

Q: Why has my toddler suddenly become clingy?

Separation anxiety commonly peaks between 12–18 months and can resurface through the toddler years, especially around 2, as independence and imagination both develop — enough to understand you leaving, but not enough to be sure you'll come back. It's a sign of healthy attachment, not a step backward. Short, calm, consistent goodbyes (rather than sneaking away or lingering) genuinely help it pass faster.

Why it happens, and why it's a good sign

Clinginess and separation anxiety reflect real developmental progress: your toddler now understands object permanence (that you still exist when out of sight) but hasn't yet built full confidence that you'll return. It's your toddler's brain correctly identifying you as their secure base — frustrating in the moment, but a sign attachment is working as intended.

What helps

Short, warm, predictable goodbyes — a consistent phrase and a quick hug beats a long, drawn-out farewell, which can heighten anxiety.
Never sneak away — even though the meltdown when you leave openly feels worse in the moment, sneaking off teaches a toddler they can't trust you to say goodbye, which usually makes clinginess worse over time.
Practise separation in low-stakes ways — a few minutes in another room while you're home, building up gradually.
Stay calm yourself — toddlers pick up on anxious energy from the adult leaving.

When it settles

Most toddlers' separation anxiety eases within a few weeks of starting a new routine (nursery, childminder) as trust builds that you always come back. If it's intense, prolonged well beyond new-routine adjustment, or your toddler seems distressed even when you're present, mention it to your health visitor.

Health answers describe NHS guidance and are not medical advice — for anything urgent, call 111 (or 999 in an emergency). Spotted something out of date? Email editors@clevermum.co.uk.