# What causes dyslexia in children? Canonical: https://pinnacleblooms.org/ask/what-causes-dyslexia-reading-impairment-in-children Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited Dyslexia is a brain-based difference in how the brain links the sounds of language to written letters — driven largely by genetics and differences in reading-related brain networks, not by low intelligence, laziness or poor parenting. It is best identified once reading instruction is under way, around 6–8 years. *When a bright, curious child struggles to crack the reading code, parents naturally ask — why? The answer is rarely about effort, and almost never about intelligence.* ## In short Dyslexia is a brain-based difference in how the brain processes the sounds and patterns of language for reading — it is **not** caused by low intelligence, laziness, poor parenting or too much screen time. It tends to run in families (a strong genetic component) and is linked to differences in the brain networks that connect spoken sounds to written letters. Children with dyslexia are often verbally bright and capable; reading simply takes a different, more deliberate route for them — and with the right support, that route works beautifully. ## What actually causes it The most consistent finding is a difficulty with **phonological processing** — the ability to notice, hold and manipulate the individual sounds in words (for example, hearing that *cat* is made of *c-a-t*). This makes mapping letters to sounds, and blending them into words, slower and effortful. The main contributing factors: - **Genetics** — dyslexia frequently runs in families; a child with a parent or sibling who reads with difficulty is more likely to share it. - **Brain wiring** — differences in the left-hemisphere language and reading networks change how efficiently sounds and letters connect, not whether a child *can* learn. - **Language environment** — does not cause dyslexia, but rich early talk, rhymes and book-sharing build a stronger foundation for reading. It is **not** caused by eye problems, reversing letters "on purpose", a lack of trying, or anything a parent did wrong. Dyslexia is best identified once formal reading instruction is well under way — usually around **6–8 years** — though early signs like trouble with rhyming or learning letter sounds can appear sooner and are worth watching. ## 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 an app. If reading is a worry, a structured look at your child's language, sound-awareness and learning profile gives you clarity and a plan. Learn more about [dyslexia and reading support](/dyslexia), explore [structured literacy and learning therapy](/special-education), and see how [the AbilityScore® gives you a clear starting point](/ask/what-is-the-abilityscore-and-how-is-it-calculated). ## Trusted sources WHO ICD-11 (developmental learning disorder with impairment in reading); American Academy of Pediatrics guidance on learning differences; British Dyslexia Association and NICE principles on early literacy support. **Next step —** Concerned about your child's reading? [Book a developmental screen with a Pinnacle clinician](/special-education). This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional. ## Sources - WHO ICD-11: developmental learning disorder with impairment in reading: https://icd.who.int - AAP HealthyChildren: learning differences and reading: https://www.healthychildren.org - NICE: principles for supporting early literacy and learning: https://www.nice.org.uk ## Connected topics and perspectives - Conditions: https://pinnacleblooms.org/ask/conditions - Parent: https://pinnacleblooms.org/ask/lens/stakeholder/parent - Cognitive: https://pinnacleblooms.org/ask/lens/domain/cognitive - 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 - What is Dyslexia (Reading Impairment)?: https://pinnacleblooms.org/ask/what-is-dyslexia-reading-impairment - What is Dyslexia (Reading Impairment) and what does it look like in early childhood?: https://pinnacleblooms.org/ask/what-is-dyslexia-reading-impairment-and-what-does-it-look-like-in-early-childhood - What are common myths about Dyslexia (Reading Impairment)?: https://pinnacleblooms.org/ask/what-are-common-myths-about-dyslexia-reading-impairment - How Dyslexia Affects a Child's Daily Life: https://pinnacleblooms.org/ask/how-does-dyslexia-reading-impairment-affect-a-child-s-daily-life - Is Dyslexia Considered a Disability?: https://pinnacleblooms.org/ask/is-dyslexia-reading-impairment-considered-a-disability - Is Dyslexia Genetic or Hereditary?: https://pinnacleblooms.org/ask/is-dyslexia-reading-impairment-genetic-or-hereditary - What are the types or levels of Dyslexia?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-dyslexia-reading-impairment - What other conditions often occur alongside dyslexia?: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-dyslexia-reading-impairment - Early intervention outcomes for dyslexia under 7: https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-dyslexia-reading-impairment-in-children-under-7 - Dyslexia (Reading Impairment): ICD-11 Definition: https://pinnacleblooms.org/ask/what-is-dyslexia-reading-impairment-and-what-are-its-icd-11-features-in-early-childhood - ICD-11 Classification for Dyslexia (Reading Impairment): https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-dyslexia-reading-impairment - What is the SNOMED CT concept for Dyslexia (Reading Impairment)?: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-dyslexia-reading-impairment ### Recognise signs & concerns - Can Dyslexia Be Cured?: https://pinnacleblooms.org/ask/can-dyslexia-reading-impairment-be-cured - Can Dyslexia Be Prevented?: https://pinnacleblooms.org/ask/can-dyslexia-reading-impairment-be-prevented - Do boys show dyslexia differently?: https://pinnacleblooms.org/ask/do-boys-show-dyslexia-reading-impairment-differently - Do girls show dyslexia differently?: https://pinnacleblooms.org/ask/do-girls-show-dyslexia-reading-impairment-differently - Should I be worried my child might have dyslexia?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-dyslexia-reading-impairment - Early Signs of Dyslexia (Reading Impairment): https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment - Early signs of dyslexia in a 1-year-old boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-1-year-old-boy - Early Signs of Dyslexia in a 1-Year-Old Girl: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-1-year-old-girl - Early Signs of Dyslexia in a 12-to-18-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-12-to-18-month-old - Early signs of dyslexia in an 18-to-24-month-old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-18-to-24-month-old - Early Signs of Dyslexia in a 2-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-2-year-old - Early Signs of Dyslexia in a 2-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-dyslexia-reading-impairment-in-a-2-year-old-boy ### Explore causes & influences - What Causes Dyslexia in Young Children?: https://pinnacleblooms.org/ask/what-causes-dyslexia-reading-impairment-in-young-children - How Dyslexia Affects a Child's Cognitive Development: https://pinnacleblooms.org/ask/how-does-dyslexia-reading-impairment-affect-a-child-s-cognitive-development - Contributing Factors for Dyslexia in Early Childhood: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-dyslexia-reading-impairment-in-early-childhood - Are boys more likely to have dyslexia?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-dyslexia-reading-impairment - Are girls more likely to have dyslexia?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-dyslexia-reading-impairment - Early Dyslexia Intervention, UNCRPD and the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-dyslexia-reading-impairment-advance-un-child-rights-uncrpd-and-the-sdgs - Cost-effectiveness of early dyslexia therapy: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-dyslexia-reading-impairment-in-young-children - Dyslexia in India: prevalence and public-health burden: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-dyslexia-reading-impairment-among-young-children-in-india ### Understand assessment - How AbilityScore tracks progress in a child with dyslexia: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-dyslexia-reading-impairment - How Dyslexia Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-dyslexia-reading-impairment-assessed-in-a-young-child - How is Dyslexia Assessed in Children Under 7?: https://pinnacleblooms.org/ask/how-is-dyslexia-reading-impairment-assessed-in-children-under-7 - AbilityScore 0–100 for a child with dyslexia: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-dyslexia-reading-impairment - What an AbilityScore of 100–200 Means for a Child with Dyslexia: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-dyslexia-reading-impairment - What does an AbilityScore of 200–300 mean for a child with Dyslexia?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-dyslexia-reading-impairment - What does an AbilityScore of 300–400 mean for a child with Dyslexia?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-dyslexia-reading-impairment - What an AbilityScore of 400–500 Means for a Child with Dyslexia: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-dyslexia-reading-impairment - What does an AbilityScore of 500–600 mean for a child with Dyslexia?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-dyslexia-reading-impairment - What does an AbilityScore of 600–700 mean in dyslexia?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-dyslexia-reading-impairment - What an AbilityScore of 700–800 Means for a Child with Dyslexia: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-dyslexia-reading-impairment - What does an AbilityScore of 800–900 mean for a child with Dyslexia?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-800-900-mean-for-a-child-with-dyslexia-reading-impairment ### Explore therapy & support - Can a child with dyslexia attend a mainstream school?: https://pinnacleblooms.org/ask/can-a-child-with-dyslexia-reading-impairment-attend-a-mainstream-school - Can a Child with Dyslexia Attend a Regular School?: https://pinnacleblooms.org/ask/can-a-child-with-dyslexia-reading-impairment-attend-a-regular-school - Can a Child with Dyslexia Grow Up to Live Independently?: https://pinnacleblooms.org/ask/can-a-child-with-dyslexia-reading-impairment-grow-up-to-live-independently - Supporting Cognitive Development in a Child with Dyslexia: https://pinnacleblooms.org/ask/how-can-we-support-cognitive-development-in-a-child-with-dyslexia-reading-impairment - How Is Dyslexia Diagnosed in a Child?: https://pinnacleblooms.org/ask/how-is-dyslexia-reading-impairment-diagnosed-in-a-child - How Dyslexia Is Supported Through Therapy: https://pinnacleblooms.org/ask/how-is-dyslexia-reading-impairment-supported-through-therapy - Dyslexia AbilityScore 0–100 — Your Next Steps: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-0-100-what-should-we-do-next - Dyslexia & an AbilityScore of 100–200: what to do next: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-100-200-what-should-we-do-next - Dyslexia and an AbilityScore of 200–300: What to Do Next: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-200-300-what-should-we-do-next - Dyslexia AbilityScore 300–400 — Next Steps for Parents: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-300-400-what-should-we-do-next - AbilityScore 400–500 with Dyslexia — Your Next Steps: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-400-500-what-should-we-do-next - Dyslexia and an AbilityScore of 500–600: what to do next: https://pinnacleblooms.org/ask/my-child-with-dyslexia-reading-impairment-has-an-abilityscore-of-500-600-what-should-we-do-next ### At home & in everyday life - How to Support Your Child with Dyslexia at Home: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-dyslexia-reading-impairment-at-home