{"h1":"Early Signs of Down Syndrome at 18–24 Months","faq":[{"a":"No — it is almost always identified at or near birth through physical features and a confirming chromosome test. By 18–24 months the focus is on supporting development, not making a new diagnosis.","q":"Is Down syndrome usually found at this age?"},{"a":"Most children with Down syndrome do learn to walk, talk and play — often at a gentler pace and with early therapy support. Understanding frequently runs ahead of spoken words at this age.","q":"Will my child walk and talk?"},{"a":"Regular hearing, vision and thyroid checks are especially important, alongside developmental follow-up, because issues like glue ear can quietly affect speech and learning.","q":"What checks matter most at 18–24 months?"},{"a":"Early is best. Speech, occupational and physiotherapy build on your child's real strengths and are most effective when begun in the toddler years.","q":"When should I start therapy?"}],"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-18-to-24-month-old","title":"Early Signs of Down Syndrome in an 18-to-24-Month-Old","entity":{"key":"down-syndrome","kind":"condition","name":"Down Syndrome","slug":"down-syndrome"},"lenses":[{"kind":"stakeholder","label":"Parent / Family","value":"parent"},{"kind":"age","label":"Toddler-18-24","value":"toddler-18-24"},{"kind":"domain","label":"Context","value":"context"},{"kind":"intent","label":"Early Signs","value":"early_signs"},{"kind":"lifecycle","label":"Screen","value":"screen"},{"kind":"route","label":"Special-Education","value":"special-education"},{"kind":"empowerment","label":"Early Clarity","value":"early_clarity"},{"kind":"condition","label":"Down Syndrome","value":"down-syndrome"},{"kind":"language","label":"English","value":"en"},{"kind":"sdg","label":"SDG 10: Reduced Inequalities","value":"10"},{"kind":"sdg","label":"SDG 3: Good Health and Well-being","value":"3"},{"kind":"sdg","label":"SDG 4: Quality Education","value":"4"},{"kind":"stakeholder","label":"ASHA / PHC / Frontline","value":"asha_phc"},{"kind":"stakeholder","label":"Doctor / Pediatrician","value":"doctor"},{"kind":"stakeholder","label":"Teacher / Educator","value":"teacher"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-3-to-6-month-old","title":"Early Signs of Down Syndrome at 3 to 6 Months"},{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-9-to-12-month-old","title":"Early Signs of Down Syndrome at 9 to 12 Months"},{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome","title":"What are the early signs of Down Syndrome?"},{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-6-to-9-month-old","title":"Early Signs of Down Syndrome at 6–9 Months"},{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-12-to-18-month-old","title":"Early Signs of Down Syndrome at 12–18 Months"},{"lang":"en","slug":"what-are-the-early-signs-of-down-syndrome-in-a-3-year-old","title":"Early Signs of Down Syndrome in a 3-Year-Old"}],"summary":"By 18–24 months, Down syndrome is almost always already confirmed at birth, so this stage is about supporting development — watching gentler-paced movement, speech and learning, often with low muscle tone — and beginning early therapy, not searching for a diagnosis.","answer_md":"*By 18 months, Down syndrome is almost always already known — but this stage is when how your child grows and learns truly comes into focus, and gentle support makes a real difference.*\n\n## In short\nDown syndrome ([ICD-11 LD40.0](/down-syndrome)) is usually identified at or near birth through physical features and a confirming chromosome test, so at 18–24 months you are rarely *discovering* it — you are watching how your child develops. At this age you may notice slower-paced milestones in movement, speech and learning, often alongside low muscle tone (hypotonia). These are areas to support and monitor, never reasons for alarm.\n\n## What you may notice at 18–24 months\n**Movement and muscle tone**\n- Low muscle tone — a softer, floppier feel; sitting, standing or walking arriving later than peers\n- Greater flexibility in joints; tiring more easily during active play\n\n**Communication and play**\n- Fewer words than expected, or first words arriving later\n- Understanding often ahead of spoken language — your child may follow more than they can say\n- Learning new skills at a steadier, gentler pace\n\n**Everyday skills and senses**\n- Feeding or chewing taking more practice\n- Recurrent ear infections or glue ear, which can affect hearing and speech\n- Routine eye and hearing checks are especially important at this stage\n\n## The science, simply\nMany of these patterns trace to hypotonia and to the wider health picture that can accompany Down syndrome — which is exactly why paediatric guidelines recommend regular vision, hearing and thyroid checks, plus early developmental therapy. Speech, occupational and physiotherapy started early help your child build on real strengths: social warmth, visual learning and a love of routine. Progress is the goal, on your child's own timeline.\n\n## The Pinnacle way\nDevelopmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under the care of qualified clinicians — never from an online list. Our team builds a strengths-first plan across [speech therapy](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate) and [special education](/special-education), with progress tracked using the [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated), a clinician-administered structured assessment. Across 70+ centres and 25 million+ therapy sessions, we walk this path alongside families every day.\n\n## Trusted sources\nAligned with WHO ICD-11 (LD40.0), CDC \"Learn the Signs. Act Early.\" developmental milestones, the Indian Academy of Pediatrics, and American Academy of Pediatrics guidance via HealthyChildren.org.\n\n**Next step —** book a developmental check on WhatsApp at +91 91001 81181, and we will design a warm, early-support plan around your child's strengths.\n\nThis is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.","canonical":"https://pinnacleblooms.org/ask/what-are-the-early-signs-of-down-syndrome-in-a-18-to-24-month-old","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/what-are-the-early-signs-of-down-syndrome-in-a-18-to-24-month-old","lang":"en","indexable":true},{"href":"https://pinnacleblooms.org/ask/what-are-the-early-signs-of-down-syndrome-in-a-18-to-24-month-old-te","lang":"te","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Down Syndrome Signs at 18–24 Months","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"Talk through your daily routine in short, clear words paired with gestures — your child often understands far more than they can say, and this builds the bridge to first words.","published_at":"2026-06-10T09:57:00.058158+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"how-does-down-syndrome-affect-a-child-s-daily-life","title":"How Down Syndrome Affects a Child's Daily Life","reason":"Same topic"},{"lang":"en","slug":"is-down-syndrome-considered-a-disability","title":"Is Down Syndrome 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Flag any feeding difficulty, breathing concerns or loss of skills promptly with your paediatrician.","authority_links":[{"url":"https://icd.who.int/en","code":"LD40.0","label":"WHO ICD-11"},{"url":"https://www.cdc.gov/child-development","label":"CDC — Learn the Signs. Act Early."},{"url":"https://www.healthychildren.org","label":"American Academy of Pediatrics (HealthyChildren.org)"}],"last_reviewed_at":"2026-06-10T09:57:00.058158+00:00","meta_description":"What to watch in an 18–24-month-old with Down syndrome — movement, speech and learning patterns, plus when early therapy support helps most.","related_materials":[],"related_techniques":[]}