# When to worry about separation anxiety at 6-9 months

Canonical: https://pinnacleblooms.org/ask/when-should-i-worry-that-my-6-to-9-month-old-might-have-separation-anxiety-disorder
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

At 6 to 9 months, crying when you leave and wariness of strangers is a normal, healthy milestone tied to learning that you still exist when out of sight — not Separation Anxiety Disorder, which is not meaningfully diagnosed this young. Watch instead for whether your baby recognises and is comforted by you and is meeting broader milestones; if not, seek a general developmental check. Any diagnosis is formed only at a Pinnacle centre under clinician care.

*If your little one cries the moment you leave the room and clings at the sight of a stranger, your heart may sink — but at 6 to 9 months, this is very often a sign of healthy love, not a disorder.*

## In short
At 6 to 9 months, becoming upset when you leave and wary of strangers is a normal and *expected* developmental milestone — your baby has learnt that you are special and that you still exist even when out of sight. [Separation Anxiety Disorder](/separation-anxiety-disorder) (ICD-11 6B05) is a clinical diagnosis that is not meaningfully applied to a baby this young, because separation distress at this age is part of typical bonding. So the honest answer is: this is almost never a reason to worry — it is a reason to feel reassured that attachment is developing well.

## What is actually happening at this age
Around 6–9 months, most babies pass through a beautiful leap in understanding called *object permanence* — they begin to grasp that you continue to exist even when they cannot see you. This naturally brings:

- **Crying or fussing when you leave the room** — even briefly
- **Clinging or reaching** for you when others approach
- **Wariness of strangers** or unfamiliar faces
- **Settling quickly** once you return or are nearby

This is healthy separation *anxiety* — a sign of a secure bond — not a *disorder*. It usually peaks between 9 and 18 months and gently eases as your child grows in confidence that you always come back.

## When a check is genuinely sensible
Rather than worrying about a diagnosis at this age, it is far more useful to keep a gentle eye on your baby's overall development. Speak warmly with your paediatrician or a developmental team if you notice your baby:

- Does **not** seem to recognise or prefer familiar caregivers at all
- Shows **no** interest in faces, eye contact or social smiling
- Cannot be **soothed or comforted** by you when upset
- Is missing other milestones — babbling, responding to sounds, sitting with support

These point towards a *general* developmental review, not a separation-anxiety assessment. A clinical anxiety diagnosis becomes meaningful only much later in childhood, when fears are persistent, out of step with age, and clearly disrupt daily life.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online form or a checklist. Our team looks at your baby's whole story — bonding, communication, play and milestones — through a warm, strengths-based lens. If you would like reassurance, a gentle [developmental check](/developmental-screening) or supportive [child psychology guidance](/child-psychology) can help you understand exactly what to expect at each stage. You can also learn how our [AbilityScore® assessment](/ask/what-is-the-abilityscore-and-how-is-it-calculated) works.

## Trusted sources
WHO ICD-11 (6B05, Separation Anxiety Disorder); American Academy of Pediatrics guidance on infant social-emotional milestones and stranger/separation anxiety (healthychildren.org); WHO Nurturing Care Framework on responsive caregiving.

**Next step —** If your baby's clinginess feels normal but you simply want reassurance, that is a perfectly good reason to ask. [Book a gentle developmental check](https://www.pinnacleblooms.org/enroll-autism-speech-aba-therapies-india) with a Pinnacle clinician.

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

## Sources
- WHO ICD-11 — Separation Anxiety Disorder (6B05): https://icd.who.int/browse/2024-01/mms/en
- AAP HealthyChildren — infant social-emotional milestones: https://www.healthychildren.org
- WHO Nurturing Care Framework — responsive caregiving: https://nurturing-care.org

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Parent: https://pinnacleblooms.org/ask/lens/stakeholder/parent
- Infant-6-9: https://pinnacleblooms.org/ask/lens/age/infant-6-9
- Emotional: https://pinnacleblooms.org/ask/lens/domain/emotional
- Concern: https://pinnacleblooms.org/ask/lens/intent/concern
- Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen
- Special Education: https://pinnacleblooms.org/ask/lens/route/special-education
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- How Separation Anxiety Disorder affects a child's daily life: https://pinnacleblooms.org/ask/how-does-separation-anxiety-disorder-affect-a-child-s-daily-life
- Is Separation Anxiety Disorder Considered a Disability?: https://pinnacleblooms.org/ask/is-separation-anxiety-disorder-considered-a-disability
- Is Separation Anxiety Disorder genetic or hereditary?: https://pinnacleblooms.org/ask/is-separation-anxiety-disorder-genetic-or-hereditary
- What are common myths about Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-common-myths-about-separation-anxiety-disorder
- What are the types or levels of Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-separation-anxiety-disorder
- What causes Separation Anxiety Disorder in children?: https://pinnacleblooms.org/ask/what-causes-separation-anxiety-disorder-in-children
- What is Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder
- What is Separation Anxiety Disorder, and what does it look like in early childhood?: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder-and-what-does-it-look-like-in-early-childhood
- Conditions That Often Occur Alongside Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-separation-anxiety-disorder
- Early Intervention Outcomes for Separation Anxiety Disorder (Under 7): https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-separation-anxiety-disorder-in-children-under-7
- Separation Anxiety Disorder (ICD-11 6B05): a clinician explainer: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder-and-what-are-its-icd-11-features-in-early-childhood
- ICD-11 Classification of Separation Anxiety Disorder (6B05): https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-separation-anxiety-disorder

### Recognise signs & concerns
- Early Signs of Separation Anxiety Disorder in a 6-to-9-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-separation-anxiety-disorder-in-a-6-to-9-month-old
- Separation Anxiety in a 3-to-6-Month-Old: When to Worry: https://pinnacleblooms.org/ask/when-should-i-worry-that-my-3-to-6-month-old-might-have-separation-anxiety-disorder
- Separation anxiety at 9–12 months: when to worry: https://pinnacleblooms.org/ask/when-should-i-worry-that-my-9-to-12-month-old-might-have-separation-anxiety-disorder
- Early Signs of Separation Anxiety Disorder at 9–12 Months: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-separation-anxiety-disorder-in-a-9-to-12-month-old
- When should I worry about anxiety in my 9-to-12-month-old?: https://pinnacleblooms.org/ask/when-should-i-worry-that-my-9-to-12-month-old-might-have-childhood-anxiety
- Separation Anxiety in a Young Baby — Should You Worry?: https://pinnacleblooms.org/ask/should-i-worry-about-separation-anxiety-in-a-young-baby
- Can Separation Anxiety Disorder be cured?: https://pinnacleblooms.org/ask/can-separation-anxiety-disorder-be-cured
- Can Separation Anxiety Disorder be prevented?: https://pinnacleblooms.org/ask/can-separation-anxiety-disorder-be-prevented
- Do boys show Separation Anxiety Disorder differently?: https://pinnacleblooms.org/ask/do-boys-show-separation-anxiety-disorder-differently
- Do girls show Separation Anxiety Disorder differently?: https://pinnacleblooms.org/ask/do-girls-show-separation-anxiety-disorder-differently
- Should I be worried my child might have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-separation-anxiety-disorder
- What are the early signs of Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-separation-anxiety-disorder

### Explore causes & influences
- Are boys more likely to have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-separation-anxiety-disorder
- Are girls more likely to have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-separation-anxiety-disorder
- What causes Separation Anxiety Disorder in young children?: https://pinnacleblooms.org/ask/what-causes-separation-anxiety-disorder-in-young-children
- Early Intervention for Separation Anxiety: Advancing UN Child Rights & the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-separation-anxiety-disorder-advance-un-child-rights-uncrpd-and-the-sdgs
- Contributing factors for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-separation-anxiety-disorder-in-early-childhood
- Cost-effectiveness of early therapy for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-separation-anxiety-disorder-in-young-children
- Separation Anxiety Disorder in India: Prevalence and Public-Health Burden: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-separation-anxiety-disorder-among-young-children-in-india

### Understand assessment
- How AbilityScore Tracks Progress in Separation Anxiety Disorder: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-separation-anxiety-disorder
- How Separation Anxiety Disorder Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-assessed-in-a-young-child
- How Separation Anxiety Disorder Is Assessed in Children Under 7: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-assessed-in-children-under-7
- What an AbilityScore of 0–100 means for separation anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 100–200 Means for Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 200–300 Means for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-separation-anxiety-disorder
- What does an AbilityScore of 300–400 mean for a child with Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 400-500 Means in Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 500–600 Means for Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-separation-anxiety-disorder
- What does an AbilityScore of 600–700 mean for a child with Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 700–800 Means for a Child with Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 800–900 Means in Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-800-900-mean-for-a-child-with-separation-anxiety-disorder

### Explore therapy & support
- Separation Anxiety Disorder and Mainstream School: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-attend-a-mainstream-school
- Can a Child with Separation Anxiety Attend a Regular School?: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-attend-a-regular-school
- Can a Child With Separation Anxiety Live Independently?: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-grow-up-to-live-independently
- Supporting Emotional Development in a Child with Separation Anxiety: https://pinnacleblooms.org/ask/how-can-we-support-emotional-development-in-a-child-with-separation-anxiety-disorder
- How Separation Anxiety Disorder Is Diagnosed in a Child: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-diagnosed-in-a-child
- How Therapy Supports Separation Anxiety Disorder: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-supported-through-therapy
- Your Child's AbilityScore for Separation Anxiety — What's Next: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-0-100-what-should-we-do-next
- AbilityScore 100–200 for Separation Anxiety — Next Steps: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-100-200-what-should-we-do-next
- AbilityScore 200–300 with Separation Anxiety Disorder — what to do next: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-200-300-what-should-we-do-next
- AbilityScore 300–400 with Separation Anxiety — Next Steps: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-300-400-what-should-we-do-next
- AbilityScore 400–500 with Separation Anxiety Disorder: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-400-500-what-should-we-do-next
- Separation Anxiety AbilityScore 500–600 — What To Do Next: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-500-600-what-should-we-do-next

### At home & in everyday life
- How can I support my child with Separation Anxiety Disorder at home?: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-separation-anxiety-disorder-at-home