{"h1":"Early Signs of Developmental Regression at 12–18 Months","faq":[{"a":"A late developer is slow to gain new skills but does not lose ones she already has. Regression is a clear backward step — losing a word, wave or movement she could do before. Any genuine loss of an established skill deserves a prompt check.","q":"How is regression different from being a 'late' developer?"},{"a":"One word coming and going can happen, but a pattern of losing words, gestures or social warmth is worth reviewing soon. Trust your memory of what she could do before, and book a developmental check rather than waiting.","q":"My toddler stopped saying a word she used to say. Should I worry?"},{"a":"Because regression can occasionally point to a medical cause needing timely attention, your first stop should be your paediatrician or a Pinnacle developmental team. They will guide whether medical review, therapy or both are the right next steps.","q":"Should I see a doctor or a therapist first?"}],"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-12-to-18-month-old","title":"Early Signs of Developmental Regression at 12–18 Months","entity":{"key":"developmental-regression","kind":"condition","name":"Developmental Regression","slug":"developmental-regression"},"lenses":[{"kind":"stakeholder","label":"Parent","value":"parent"},{"kind":"age","label":"Toddler-12-18","value":"toddler-12-18"},{"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"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression","title":"What are the early signs of Developmental Regression?"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-2-year-old","title":"Early Signs of Developmental Regression in a 2-Year-Old"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-1-year-old-boy","title":"Early Signs of Developmental Regression in a 1-Year-Old Boy"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-9-to-12-month-old","title":"Early signs of developmental regression in a 9-to-12-month-old"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-3-to-6-month-old","title":"Early Signs of Developmental Regression at 3-6 Months"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-18-to-24-month-old","title":"Early Signs of Developmental Regression at 18–24 Months"}],"summary":"Early signs of developmental regression in a 12-to-18-month-old include losing words or babbling once used, no longer waving or pointing, less eye contact and social warmth, and loss of movement or hand skills. Unlike a slow start, regression is a clear backward step and warrants a prompt developmental and medical check. Only a clinician can confirm.","answer_md":"*When a skill your little one had — a wave, a word, a smile of recognition — quietly fades, it can be deeply unsettling. Knowing what to watch for helps you act early and with confidence.*\n\n## In short\nDevelopmental regression means losing skills your child had already gained — words, gestures, social warmth, play or movement skills. In a 12-to-18-month-old, the clearest early signs are a child who stops using words or babbling they once had, no longer waves or points, becomes less interested in faces and cuddles, or seems to lose hand or walking skills they had mastered. Unlike a brief plateau, regression is a clear backward step — and any genuine loss of skills at this age deserves a prompt developmental check. Only a qualified clinician can tell apart a passing dip from a regression that needs support.\n\n## Early signs to watch for\n**Around words and sounds**\n- Stopping use of words, babbling or sounds she once said\n- Going quiet after a period of chatty babble or first words\n- No longer responding to her name when she used to\n\n**Around social connection and play**\n- Less eye contact, fewer smiles, or seeming to 'tune out' from people\n- Losing the wave, point, clap or 'bye-bye' she had learned\n- Less interest in shared games like peek-a-boo or showing you toys\n\n**Around movement and hands**\n- Losing a skill she had — sitting steadily, pulling to stand, walking, or holding objects\n- New clumsiness, weakness or unusual hand movements (wringing, repetitive motions)\n- Becoming floppy or stiff compared with before\n\nA true regression is a *loss* of an established skill, not simply being slow to gain a new one. Trust your memory — if she could do something a month ago and clearly cannot now, that observation matters.\n\n## When to seek a check\nGenuine loss of skills at any age should be reviewed promptly — this is not a 'wait and see' situation. Book a developmental check soon if you notice any clear backward step in words, social warmth, play or movement. Because regression can occasionally point to a medical cause that needs timely attention, your first stop should be your paediatrician or a Pinnacle developmental team, who will guide the right next steps. Your own clear memory of what she could do before is valuable evidence — share it.\n\n## The Pinnacle way\nAt [Pinnacle Blooms Network](/), we take any report of lost skills seriously and act early, pairing prompt medical referral with gentle, strengths-based support such as [speech therapy](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate) and developmental therapy as needed. You can read more about [developmental regression](/developmental-regression) and how we approach it. 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 online list. With 4.95 lakh+ families served across 70+ centres, we focus on rebuilding and growing what your child *can* do next.\n\n## Trusted sources\nAligned with World Health Organization guidance, American Academy of Pediatrics and HealthyChildren.org developmental surveillance advice, and CDC milestone resources, all of which recommend prompt review whenever a child loses previously acquired skills.\n\n**Next step —** if you have noticed any skill fading, book a prompt developmental screen with the Pinnacle team on WhatsApp: +91 91001 81181.\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-developmental-regression-in-a-12-to-18-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-developmental-regression-in-a-12-to-18-month-old","lang":"en","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Developmental Regression Signs: 12–18 Months","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"Keep a simple note or short videos of what your child can do each month. If you ever sense a skill fading, this record gives your clinician clear, valuable evidence to act on quickly.","published_at":"2026-06-10T10:58:00.048774+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"how-does-developmental-regression-affect-a-child-s-daily-life","title":"How Developmental Regression Affects a Child's Daily Life","reason":"Same topic"},{"lang":"en","slug":"is-developmental-regression-considered-a-disability","title":"Is Developmental Regression considered a disability?","reason":"Same topic"},{"lang":"en","slug":"is-developmental-regression-genetic-or-hereditary","title":"Is Developmental Regression Genetic or Hereditary?","reason":"Same topic"},{"lang":"en","slug":"what-are-common-myths-about-developmental-regression","title":"What are common myths about Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-types-or-levels-of-developmental-regression","title":"What are the types or levels of Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-causes-developmental-regression-in-children","title":"What causes developmental regression in children?","reason":"Same topic"},{"lang":"en","slug":"what-is-developmental-regression","title":"What is Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-is-developmental-regression-and-what-does-it-look-like-in-early-childhood","title":"What is Developmental Regression, and what does it look like in early childhood?","reason":"Same topic"},{"lang":"en","slug":"what-other-conditions-often-occur-alongside-developmental-regression","title":"What conditions occur alongside Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-does-current-research-show-about-early-intervention-outcomes-for-developmental-regression-in-children-under-7","title":"Early Intervention Outcomes in Developmental Regression Under 7","reason":"Same topic"},{"lang":"en","slug":"what-is-developmental-regression-and-what-are-its-icd-11-features-in-early-childhood","title":"Developmental Regression: ICD-11 Features in Early Childhood","reason":"Same topic"},{"lang":"en","slug":"what-is-the-icd-11-classification-for-developmental-regression","title":"What is the ICD-11 classification for Developmental Regression?","reason":"Same topic"}],"label":"Understand the subject","total":14},{"key":"signs","items":[{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression","title":"What are the early signs of Developmental Regression?","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-18-to-24-month-old","title":"Early Signs of Developmental Regression at 18–24 Months","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-9-to-12-month-old","title":"Early signs of developmental regression in a 9-to-12-month-old","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-2-year-old","title":"Early Signs of Developmental Regression in a 2-Year-Old","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-1-year-old-boy","title":"Early Signs of Developmental Regression in a 1-Year-Old Boy","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-early-signs-of-developmental-regression-in-a-3-to-6-month-old","title":"Early Signs of Developmental Regression at 3-6 Months","reason":"Linked from this answer"},{"lang":"en","slug":"when-should-i-worry-that-my-12-to-18-month-old-might-have-developmental-regression","title":"When to Worry About Developmental Regression at 12–18 Months","reason":"Same topic"},{"lang":"en","slug":"can-developmental-regression-be-cured","title":"Can Developmental Regression Be Cured?","reason":"Same topic"},{"lang":"en","slug":"can-developmental-regression-be-prevented","title":"Can Developmental Regression Be Prevented?","reason":"Same topic"},{"lang":"en","slug":"do-boys-show-developmental-regression-differently","title":"Do boys show developmental regression differently?","reason":"Same topic"},{"lang":"en","slug":"do-girls-show-developmental-regression-differently","title":"Developmental Regression in Girls","reason":"Same topic"},{"lang":"en","slug":"should-i-be-worried-my-child-might-have-developmental-regression","title":"Should I Be Worried About Developmental Regression?","reason":"Same topic"}],"label":"Recognise signs & concerns","total":46},{"key":"causes","items":[{"lang":"en","slug":"are-boys-more-likely-to-have-developmental-regression","title":"Are Boys More Likely to Have Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"are-girls-more-likely-to-have-developmental-regression","title":"Are girls more likely to have developmental regression?","reason":"Same topic"},{"lang":"en","slug":"what-causes-developmental-regression-in-young-children","title":"What Causes Developmental Regression in Young Children?","reason":"Same topic"},{"lang":"en","slug":"how-does-early-intervention-for-developmental-regression-advance-un-child-rights-uncrpd-and-the-sdgs","title":"Early Intervention for Developmental Regression: UNCRPD & SDGs","reason":"Same topic"},{"lang":"en","slug":"what-are-the-known-contributing-factors-for-developmental-regression-in-early-childhood","title":"Contributing Factors for Developmental Regression","reason":"Same topic"},{"lang":"en","slug":"what-is-the-cost-effectiveness-of-early-therapy-for-developmental-regression-in-young-children","title":"What is the cost-effectiveness of early therapy for developmental regression?","reason":"Same topic"},{"lang":"en","slug":"what-is-the-prevalence-and-public-health-burden-of-developmental-regression-among-young-children-in-india","title":"Prevalence and public-health burden of Developmental Regression in India","reason":"Same topic"}],"label":"Explore causes & influences","total":7},{"key":"assess","items":[{"lang":"en","slug":"how-does-abilityscore-track-progress-in-a-child-with-developmental-regression","title":"How AbilityScore Tracks Progress in Developmental Regression","reason":"Same topic"},{"lang":"en","slug":"how-is-developmental-regression-assessed-in-a-young-child","title":"How Developmental Regression Is Assessed in a Young Child","reason":"Same topic"},{"lang":"en","slug":"how-is-developmental-regression-assessed-in-children-under-7","title":"How Developmental Regression Is Assessed in Children Under 7","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-0-100-mean-for-a-child-with-developmental-regression","title":"What an AbilityScore of 0–100 Means for Developmental Regression","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-100-200-mean-for-a-child-with-developmental-regression","title":"What an AbilityScore of 100–200 Means in Developmental Regression","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-200-300-mean-for-a-child-with-developmental-regression","title":"What does an AbilityScore of 200–300 mean for a child with Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-300-400-mean-for-a-child-with-developmental-regression","title":"What does an AbilityScore of 300–400 mean for a child with Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-400-500-mean-for-a-child-with-developmental-regression","title":"What an AbilityScore of 400–500 Means in Developmental Regression","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-500-600-mean-for-a-child-with-developmental-regression","title":"What does an AbilityScore of 500-600 mean for a child with Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-600-700-mean-for-a-child-with-developmental-regression","title":"What an AbilityScore of 600–700 means for developmental regression","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-700-800-mean-for-a-child-with-developmental-regression","title":"What does an AbilityScore of 700–800 mean for a child with Developmental Regression?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-800-900-mean-for-a-child-with-developmental-regression","title":"What an AbilityScore of 800–900 means for a child with developmental regression","reason":"Same topic"}],"label":"Understand assessment","total":16},{"key":"therapy","items":[{"lang":"en","slug":"can-a-child-with-developmental-regression-attend-a-mainstream-school","title":"Can a child with developmental regression attend a mainstream school?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-developmental-regression-attend-a-regular-school","title":"Can a child with developmental regression attend a regular school?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-developmental-regression-grow-up-to-live-independently","title":"Can a child with developmental regression live independently?","reason":"Same topic"},{"lang":"en","slug":"how-is-developmental-regression-diagnosed-in-a-child","title":"How Is Developmental Regression Diagnosed in a Child?","reason":"Same topic"},{"lang":"en","slug":"how-is-developmental-regression-supported-through-therapy","title":"How is Developmental Regression supported through therapy?","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-0-100-what-should-we-do-next","title":"Developmental Regression AbilityScore 0–100: Next Steps","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-100-200-what-should-we-do-next","title":"AbilityScore 100–200 with Developmental Regression — What to Do Next","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-200-300-what-should-we-do-next","title":"Developmental Regression & AbilityScore 200–300 — What to Do Next","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-300-400-what-should-we-do-next","title":"Developmental Regression with an AbilityScore of 300–400: What to do next","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-400-500-what-should-we-do-next","title":"Developmental Regression with an AbilityScore of 400–500: what to do next","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-500-600-what-should-we-do-next","title":"Developmental Regression with an AbilityScore of 500–600: What to Do Next","reason":"Same topic"},{"lang":"en","slug":"my-child-with-developmental-regression-has-an-abilityscore-of-600-700-what-should-we-do-next","title":"Developmental Regression with an AbilityScore of 600–700: Next Steps","reason":"Same topic"}],"label":"Explore therapy & support","total":61},{"key":"home","items":[{"lang":"en","slug":"how-can-i-support-my-child-with-developmental-regression-at-home","title":"Supporting Your Child with Developmental Regression at Home","reason":"Same topic"}],"label":"At home & in everyday life","total":1}],"what_to_watch":"Any clear loss of an established skill — words, waving, eye contact, sitting or walking — at this age needs prompt review, not a wait-and-see approach, as it can occasionally signal a medical cause needing timely attention.","authority_links":[{"url":"https://www.healthychildren.org","label":"AAP HealthyChildren — developmental milestones & surveillance"},{"url":"https://www.cdc.gov","label":"CDC — Learn the Signs. Act Early. milestone resources"},{"url":"https://www.who.int","label":"World Health Organization — child development guidance"}],"last_reviewed_at":"2026-06-10T10:58:00.048774+00:00","meta_description":"Early signs of developmental regression in 12-to-18-month-olds: losing words, gestures, social warmth or movement skills. When to seek a prompt check.","related_materials":[],"related_techniques":[]}