{"h1":"When to worry about Rett Syndrome in a 6-year-old","faq":[{"a":"Most often between 6 and 18 months of age, after a period of seemingly normal early development. A distinctive early sign is the loss of purposeful hand use, replaced by repetitive hand movements such as wringing or washing, along with loss of spoken words and slowing head growth.","q":"At what age does Rett Syndrome usually first show?"},{"a":"It is very unlikely. Classic Rett Syndrome emerges early with a recognisable loss of hand skills and speech. A child who has developed and kept her speech, hand use and play through to age 6 does not fit that pattern, which is genuinely reassuring.","q":"My 6-year-old has always developed well — could she still have Rett Syndrome?"},{"a":"Any loss of skills she clearly once had — words, hand use, or social engagement — deserves a prompt review at any age. Also unusual repetitive hand movements with reduced purposeful use, a marked change in walking, or a strong parental sense that something has shifted.","q":"What should make me seek a check at this age?"},{"a":"Confirmation involves genetic testing arranged by a paediatrician, alongside clinical assessment. An online checklist cannot diagnose it — a clinical review is the right first step if you have concerns.","q":"How is Rett Syndrome confirmed?"}],"lang":"en","slug":"when-should-i-worry-that-my-6-year-old-might-have-rett-syndrome","title":"When should I worry about Rett Syndrome in my 6-year-old?","entity":{"key":"rett","kind":"condition","name":"Rett Syndrome","slug":"rett-syndrome"},"lenses":[{"kind":"stakeholder","label":"Parent","value":"parent"},{"kind":"age","label":"School-6y","value":"school-6y"},{"kind":"domain","label":"Context","value":"context"},{"kind":"intent","label":"Concern","value":"concern"},{"kind":"lifecycle","label":"Screen","value":"screen"},{"kind":"route","label":"Special-Education","value":"special-education"},{"kind":"empowerment","label":"Early Clarity","value":"early_clarity"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"when-should-i-worry-that-my-3-year-old-might-have-rett-syndrome","title":"When should I worry that my 3-year-old might have Rett Syndrome?"},{"lang":"en","slug":"when-should-i-worry-that-my-4-year-old-might-have-rett-syndrome","title":"When should I worry that my 4-year-old might have Rett Syndrome?"},{"lang":"en","slug":"when-should-i-worry-that-my-2-year-old-might-have-rett-syndrome","title":"When should I worry that my 2-year-old might have Rett Syndrome?"},{"lang":"en","slug":"when-should-i-worry-that-my-12-to-18-month-old-might-have-rett-syndrome","title":"When to worry about Rett Syndrome at 12–18 months"},{"lang":"en","slug":"what-are-the-early-signs-of-rett-syndrome-in-a-6-year-old","title":"Early Signs of Rett Syndrome in a 6-Year-Old"},{"lang":"en","slug":"when-should-i-worry-that-my-5-year-old-might-have-rett-syndrome","title":"When should I worry about Rett Syndrome at age 5?"}],"summary":"Rett Syndrome almost always appears far earlier than age 6 — usually between 6 and 18 months — with a distinctive loss of purposeful hand use and spoken words after early normal development. A 6-year-old who has developed and kept her speech, hand skills and play is very unlikely to have it. What always deserves a prompt check at any age is loss of skills she once had — not a diagnosis, but a reason for clinical review.","answer_md":"*If you're watching your bright, growing 6-year-old and wondering whether Rett Syndrome could be a worry, let's gently look at what this condition actually is — and why, for most school-age girls, the picture is reassuringly clear.*\n\n## In short\nRett Syndrome is a rare genetic condition that almost always shows itself far earlier than age 6 — typically between 6 and 18 months, after a period of seemingly normal early development, with a distinctive loss of purposeful hand use and spoken words. If your 6-year-old has been developing, speaking, playing and using her hands well all along, Rett Syndrome is very unlikely. What matters at 6 is to look at how she is doing *now* — and to seek a developmental check for any concern, rather than worrying about one specific rare label.\n\n## Understanding Rett Syndrome at this age\nRett Syndrome follows a recognisable pattern, and that pattern is the most useful thing to understand. After early months of typical growth, an affected child usually shows, before her second or third year:\n\n- **Loss of purposeful hand skills** — replaced by repetitive hand-wringing, washing or mouthing movements (a hallmark sign).\n- **Loss of spoken language** she had begun to use.\n- **Slowing head growth** noticed on the growth chart in infancy.\n- **Walking difficulties** — unsteady, stiff or on tiptoe.\n\nBecause these features emerge early and are quite distinctive, a child who reaches 6 having developed and kept her hand use, speech and play is very unlikely to have classic Rett Syndrome. If your daughter has always developed well, this is genuine reassurance.\n\nWhat *does* deserve prompt attention at any age is **regression** — losing words, hand skills or social engagement she clearly once had. Any loss of established skills, at 6 or earlier, should be reviewed by a clinician without delay, whatever the eventual explanation.\n\n## When to seek a check\nArrange a developmental and paediatric review now if you notice: any loss of skills she previously had; unusual repetitive hand movements with reduced purposeful hand use; a marked change in walking or coordination; or simply a strong parental sense that something has shifted. Confirming Rett Syndrome involves genetic testing arranged by a paediatrician — so a clinical review is the right first step, not an online checklist.\n\n## The Pinnacle way\nThis is general information, not a diagnosis — 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. Our clinicians build a full developmental baseline, look carefully at any change over time, and route promptly for paediatric and genetic input when the picture warrants it. You can learn more about [Rett Syndrome](/rett-syndrome) and how, where skills need rebuilding, our [occupational therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) team supports hand use, coordination and daily living.\n\n## Trusted sources\nWHO ICD-11 classification of Rett Syndrome; American Academy of Pediatrics (healthychildren.org) guidance on developmental surveillance and regression; CDC developmental milestone and \"Learn the Signs, Act Early\" resources.\n\n**Next step —** Trust what you've observed. [Book a developmental assessment](https://www.pinnacleblooms.org/enroll-autism-speech-aba-therapies-india) with a Pinnacle clinician so your daughter's development is reviewed with clarity, care and the right next steps.","canonical":"https://pinnacleblooms.org/ask/when-should-i-worry-that-my-6-year-old-might-have-rett-syndrome","editorial":{"reviewed_at":"2026-06-11T20:12:18.613642+00:00","reviewed_by":null,"developed_by":"SETU Consortium · Pinnacle Blooms Network"},"alternates":[{"href":"https://pinnacleblooms.org/ask/when-should-i-worry-that-my-6-year-old-might-have-rett-syndrome","lang":"en","indexable":true},{"href":"https://pinnacleblooms.org/ask/when-should-i-worry-that-my-6-year-old-might-have-rett-syndrome-te","lang":"te","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Rett Syndrome Worry in a 6-Year-Old | Pinnacle","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"Keep a short note of when your child first used and kept key skills — words, drawing, dressing, hand use. A clear record makes it easy for a clinician to tell steady growth from any genuine change.","published_at":"2026-06-10T11:00:00.139124+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"how-does-rett-syndrome-affect-a-child-s-daily-life","title":"How Rett Syndrome Affects a Child's Daily Life","reason":"Same topic"},{"lang":"en","slug":"is-rett-syndrome-considered-a-disability","title":"Is Rett Syndrome considered a disability?","reason":"Same topic"},{"lang":"en","slug":"is-rett-syndrome-genetic-or-hereditary","title":"Is Rett Syndrome Genetic or Hereditary?","reason":"Same topic"},{"lang":"en","slug":"what-are-common-myths-about-rett-syndrome","title":"What are common myths about Rett Syndrome?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-types-or-levels-of-rett-syndrome","title":"Types and Stages of Rett Syndrome","reason":"Same topic"},{"lang":"en","slug":"what-causes-rett-syndrome-in-children","title":"What causes Rett syndrome in 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To Do Next","reason":"Same topic"}],"label":"Explore therapy & support","total":68},{"key":"home","items":[{"lang":"en","slug":"how-can-i-support-my-child-with-rett-syndrome-at-home","title":"How can I support my child with Rett Syndrome at home?","reason":"Same topic"}],"label":"At home & in everyday life","total":1}],"what_to_watch":"Seek a prompt clinician check for any loss of skills your child once had — spoken words, purposeful hand use, or social engagement; unusual repetitive hand movements (wringing, washing, mouthing) with reduced hand use; a marked change in walking or coordination; or a strong sense that something has shifted.","authority_links":[{"url":"https://icd.who.int/browse11","code":"LD90.0","label":"WHO ICD-11: Rett Syndrome"},{"url":"https://www.healthychildren.org","label":"AAP — developmental surveillance and regression"},{"url":"https://www.cdc.gov/child-development","label":"CDC — Learn the Signs, Act Early"}],"last_reviewed_at":"2026-06-10T11:00:00.139124+00:00","meta_description":"Rett Syndrome usually appears by 6–18 months, not at 6. A school-age girl developing well is very unlikely affected — but any loss of skills deserves a che","related_materials":[],"related_techniques":[]}