# Cerebral Palsy vs Rett Syndrome in Young Children Canonical: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-rett-syndrome-in-young-children Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited Cerebral palsy is a non-progressive movement and posture condition caused by an early injury to the developing brain; it affects all children and tends to stay steady, with therapy building on existing abilities. Rett syndrome is a rare genetic condition seen almost only in girls, caused by an MECP2 gene change, marked by a typical early start followed by regression — loss of purposeful hand use and speech, repetitive hand movements and slowing head growth. The clearest difference is the pattern: CP stays steady from an early brain event, while Rett shows a distinctive loss-then-plateau course, confirmable by genetic testing. *Both can affect how a young child moves and grows — but one is present from very early and tends to stay steady, while the other usually appears after a bright, typical start.* ## In short **Cerebral palsy (CP)** is a movement and posture condition caused by an early injury to the developing brain, before, during or shortly after birth. It is *non-progressive* — the brain injury itself does not worsen — and it affects boys and girls alike. **Rett syndrome** is a rare genetic condition, almost always seen in girls, caused by a change in the *MECP2* gene. Its hallmark is *regression*: a baby often develops typically for the first 6–18 months, then loses skills she had gained — especially purposeful hand use — and develops repetitive hand movements. So the simplest difference is direction and cause: CP comes from an early brain injury and tends to stay steady; Rett comes from a gene change and shows a distinctive loss-then-stabilise pattern. ## How they differ in young children **Cerebral palsy** usually shows in early stiffness or floppiness, delayed sitting or walking, favouring one side of the body, or difficulty with coordination and feeding. The same child keeps the abilities she has and, with therapy, builds on them — the underlying brain event happened once and is not advancing. **Rett syndrome** follows a more particular path. After an early period of apparently normal development, a girl may slow down, lose spoken words and the ability to use her hands purposefully, and begin characteristic repetitive hand movements such as wringing, washing or mouthing. Head growth may slow. Walking can become unsteady, and breathing irregularities may appear. This *regression then plateau* pattern, especially in a girl, is what most distinguishes it from CP. Both conditions can involve tone changes, mobility challenges and communication difficulties — which is why a careful clinical look matters. The story of *how* development unfolded (steady from the start versus a clear loss of skills) is often the most telling clue, and genetic testing can confirm Rett syndrome. ## When to seek a check If your child is not meeting movement milestones, stiffens or feels floppy, strongly favours one hand very early, or — importantly — *loses* skills she once had, or shows repetitive hand movements with a slowing of head growth, please arrange a developmental check promptly. Loss of previously gained skills always deserves timely review. ## The Pinnacle way This 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, never from an app or form. Our team observes how your child moves, communicates and grows, then shapes a plan drawing on [occupational therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) and [physiotherapy](/physiotherapy), with speech support where needed. Learn more about [cerebral palsy](/cerebral-palsy) support. ## Trusted sources The World Health Organization and CDC on cerebral palsy and developmental monitoring; the American Academy of Pediatrics and HealthyChildren on movement milestones and acting early when skills are lost. **Next step —** Noticing delayed movement or a loss of skills? Book a developmental screening and let a clinician guide you with clarity and care. ## Sources - CDC — facts about cerebral palsy: https://www.cdc.gov/cerebral-palsy/about/index.html - HealthyChildren (AAP) — developmental conditions: https://www.healthychildren.org/English/health-issues/conditions/developmental-disabilities/Pages/default.aspx - WHO — health fact sheets: https://www.who.int/news-room/fact-sheets ## Connected topics and perspectives - Parent: https://pinnacleblooms.org/ask/lens/stakeholder/parent - Motor: https://pinnacleblooms.org/ask/lens/domain/motor - Definition: https://pinnacleblooms.org/ask/lens/intent/definition - Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen - Book Assessment: https://pinnacleblooms.org/ask/lens/route/book-assessment - Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity ## Related question paths ### Understand the subject - Autism Spectrum vs Rett Syndrome in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-autism-spectrum-and-rett-syndrome-in-young-children - Motor Planning Difficulties vs Rett Syndrome: https://pinnacleblooms.org/ask/what-is-the-difference-between-motor-planning-difficulties-and-rett-syndrome-in-young-children - Rett Syndrome vs Stereotyped Movement Disorder in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-rett-syndrome-and-stereotyped-movement-disorder-in-young-children - Down Syndrome vs Rett Syndrome in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-down-syndrome-and-rett-syndrome-in-young-children - Genetic / Chromosomal Syndromes vs Rett Syndrome in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-genetic-chromosomal-syndromes-and-rett-syndrome-in-young-children - Cerebral Palsy vs Childhood Apraxia of Speech in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-childhood-apraxia-of-speech-in-young-children - Cerebral Palsy vs Childhood Epilepsy in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-childhood-epilepsy-in-young-children - Cerebral Palsy vs Childhood Sleep Difficulties in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-childhood-sleep-difficulties-in-young-children - Cerebral Palsy vs Conduct-Dissocial Disorder in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-conduct-dissocial-disorder-in-young-children - Cerebral Palsy vs Developmental Coordination Disorder in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-developmental-coordination-disorder-in-young-children - Cerebral Palsy vs Developmental Language Disorder: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-developmental-language-disorder-in-young-children - Cerebral Palsy vs Developmental Regression in Young Children: https://pinnacleblooms.org/ask/what-is-the-difference-between-cerebral-palsy-and-developmental-regression-in-young-children ### Explore causes & influences - How Rett Syndrome Affects Motor Development: https://pinnacleblooms.org/ask/how-does-rett-syndrome-affect-a-child-s-motor-development