# Early Signs of Rett Syndrome

Canonical: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

Rett Syndrome typically begins after 6–18 months of seemingly typical development, followed by slowing head growth and loss of purposeful hand skills — replaced by repetitive hand-wringing or mouthing — alongside fading babble and reduced social engagement. The loss of previously gained skills is the key early sign and warrants prompt medical assessment, not home diagnosis.

*Many baby girls grow beautifully for months — then a parent senses something has quietly shifted, and trusting that instinct matters.*

## In short
Rett Syndrome typically follows a distinctive pattern: a girl develops normally for roughly the first 6–18 months, then growth of head size slows and previously gained skills — like purposeful hand use, babble or words — gradually fade. The most telling early sign is the loss of purposeful hand movements, replaced by repetitive hand-wringing, washing or mouthing motions. These are signs to observe and bring to a clinician promptly, not to diagnose at home — Rett Syndrome is a genetic condition that benefits from early, coordinated medical and therapy support.

## Early signs to watch
**A period of typical development first**
- Usually grows and develops as expected for the first 6–18 months
- Then a slowing or stalling, sometimes a quiet regression

**Head growth slows**
- Head circumference, normal at birth, grows more slowly between about 5 months and 4 years (acquired microcephaly)

**Loss of purposeful hand skills**
- Previously used hands — reaching, grasping, holding a toy — are gradually lost
- Replaced by repetitive hand movements: wringing, squeezing, clapping, tapping or bringing hands to the mouth

**Communication and social changes**
- Loss of babble or first words; reduced eye contact or social engagement that may later return
- Sometimes mistaken for autism in this early phase

**Movement and other signs**
- Trouble with walking or unsteady, wide-based gait; stiffness
- Slowed overall growth; teeth-grinding; breathing irregularities (breath-holding or rapid breathing) when awake

What distinguishes Rett is the **sequence** — a settled early period, then a slowing and loss of hand skills and communication. Because it is a recognised genetic condition (most often linked to the MECP2 gene), any suspected regression deserves a prompt medical review.

## When to seek a check — promptly
If your daughter loses skills she once had — especially purposeful hand use, babble or words — or if her head growth seems to be slowing, see a paediatrician or developmental specialist soon. Loss of previously gained milestones is always a reason for prompt medical assessment, and genetic testing can confirm the diagnosis. Early support does not change the genetics, but it meaningfully supports comfort, communication, mobility and family wellbeing.

## The Pinnacle way
At [Pinnacle Blooms Network](/rett-syndrome), we walk beside families through every stage — protecting communication, movement and dignity with a coordinated, strengths-first plan. Support such as [occupational therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) helps with hand function, daily skills and sensory comfort, while communication is nurtured through alternative and assistive routes. A clinical [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care; nothing here is a diagnosis. Across 70+ centres in 4 states and 4.95 lakh+ families served, our aim is steady, compassionate progress.

## Trusted sources
Aligned with WHO ICD-11 (LD90.0), and developmental and child-health guidance from the American Academy of Pediatrics and HealthyChildren.org on milestones and developmental regression.

**Next step —** if your daughter has lost skills she once had, or you've noticed unusual hand movements, book a developmental review with our clinical team on WhatsApp at +91 91001 81181, and let's understand her together.

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

## Sources
- WHO ICD-11: Rett Syndrome (LD90.0): https://icd.who.int/
- HealthyChildren.org — developmental milestones and regression: https://www.healthychildren.org/
- American Academy of Pediatrics — developmental surveillance: https://www.aap.org/

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Parent: https://pinnacleblooms.org/ask/lens/stakeholder/parent
- Context: https://pinnacleblooms.org/ask/lens/domain/context
- Early Signs: https://pinnacleblooms.org/ask/lens/intent/early_signs
- 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 Rett Syndrome Affects a Child's Daily Life: https://pinnacleblooms.org/ask/how-does-rett-syndrome-affect-a-child-s-daily-life
- Is Rett Syndrome considered a disability?: https://pinnacleblooms.org/ask/is-rett-syndrome-considered-a-disability
- Is Rett Syndrome Genetic or Hereditary?: https://pinnacleblooms.org/ask/is-rett-syndrome-genetic-or-hereditary
- What are common myths about Rett Syndrome?: https://pinnacleblooms.org/ask/what-are-common-myths-about-rett-syndrome
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- What causes Rett syndrome in children?: https://pinnacleblooms.org/ask/what-causes-rett-syndrome-in-children
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- Conditions That Occur Alongside Rett Syndrome: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-rett-syndrome
- Early Intervention Outcomes in Rett Syndrome (Under 7): https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-rett-syndrome-in-children-under-7
- What is Rett Syndrome, and its ICD-11 features in early childhood?: https://pinnacleblooms.org/ask/what-is-rett-syndrome-and-what-are-its-icd-11-features-in-early-childhood
- ICD-11 Classification of Rett Syndrome (LD90.0): https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-rett-syndrome

### Recognise signs & concerns
- Early Signs of Rett Syndrome in a 2-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-2-year-old
- Early Signs of Rett Syndrome in an 18-to-24-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-18-to-24-month-old
- Early Signs of Rett Syndrome in a 3-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-3-year-old
- Early Signs of Rett Syndrome at 12–18 Months: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-12-to-18-month-old
- Early Signs of Rett Syndrome in Girls: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-girls
- Early Signs of Rett Syndrome in a 6-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-6-year-old
- Can Rett Syndrome Be Cured?: https://pinnacleblooms.org/ask/can-rett-syndrome-be-cured
- Can Rett Syndrome Be Prevented?: https://pinnacleblooms.org/ask/can-rett-syndrome-be-prevented
- Rett Syndrome in Boys: https://pinnacleblooms.org/ask/do-boys-show-rett-syndrome-differently
- Do girls show Rett Syndrome differently?: https://pinnacleblooms.org/ask/do-girls-show-rett-syndrome-differently
- Should I be worried my child might have Rett Syndrome?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-rett-syndrome
- Early signs of Rett syndrome in a 1-year-old boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-rett-syndrome-in-a-1-year-old-boy

### Explore causes & influences
- Are boys more likely to have Rett Syndrome?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-rett-syndrome
- Are girls more likely to have Rett Syndrome?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-rett-syndrome
- What Causes Rett Syndrome in Young Children?: https://pinnacleblooms.org/ask/what-causes-rett-syndrome-in-young-children
- Early Intervention for Rett Syndrome, UNCRPD & the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-rett-syndrome-advance-un-child-rights-uncrpd-and-the-sdgs
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- Prevalence and Public-Health Burden of Rett Syndrome in India: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-rett-syndrome-among-young-children-in-india

### Understand assessment
- How AbilityScore Tracks Progress in a Child with Rett Syndrome: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-rett-syndrome
- How Rett Syndrome Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-rett-syndrome-assessed-in-a-young-child
- How Rett Syndrome Is Assessed in Children Under 7: https://pinnacleblooms.org/ask/how-is-rett-syndrome-assessed-in-children-under-7
- What an AbilityScore® of 0–100 means for a child with Rett Syndrome: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-rett-syndrome
- What does an AbilityScore of 100–200 mean for a child with Rett Syndrome?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-rett-syndrome
- What does an AbilityScore of 200–300 mean for a child with Rett Syndrome?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-rett-syndrome
- AbilityScore 300–400 in Rett Syndrome: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-rett-syndrome
- What an AbilityScore of 400–500 Means in Rett Syndrome: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-rett-syndrome
- What does an AbilityScore of 500–600 mean for a child with Rett Syndrome?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-rett-syndrome
- What does an AbilityScore of 600–700 mean for a child with Rett Syndrome?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-rett-syndrome
- What an AbilityScore of 700–800 Means for a Child with Rett Syndrome: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-rett-syndrome
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### Explore therapy & support
- Can a Child with Rett Syndrome Attend a Mainstream School?: https://pinnacleblooms.org/ask/can-a-child-with-rett-syndrome-attend-a-mainstream-school
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- How is Rett Syndrome diagnosed in a child?: https://pinnacleblooms.org/ask/how-is-rett-syndrome-diagnosed-in-a-child
- How is Rett Syndrome supported through therapy?: https://pinnacleblooms.org/ask/how-is-rett-syndrome-supported-through-therapy
- Rett Syndrome AbilityScore®: What to Do Next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-0-100-what-should-we-do-next
- Rett Syndrome with an AbilityScore of 100–200: your next step: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-100-200-what-should-we-do-next
- Rett Syndrome: AbilityScore 200–300 — what to do next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-200-300-what-should-we-do-next
- Rett Syndrome: AbilityScore 300–400 — what to do next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-300-400-what-should-we-do-next
- Rett Syndrome with an AbilityScore of 400–500: what to do next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-400-500-what-should-we-do-next
- Rett Syndrome and an AbilityScore of 500–600: What To Do Next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-500-600-what-should-we-do-next
- Rett Syndrome AbilityScore 600–700: What To Do Next: https://pinnacleblooms.org/ask/my-child-with-rett-syndrome-has-an-abilityscore-of-600-700-what-should-we-do-next

### At home & in everyday life
- How can I support my child with Rett Syndrome at home?: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-rett-syndrome-at-home