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Signs & concerns
When to Worry About Developmental Regression at 12–18 Months
At 12–18 months, the real flag is not slow progress but losing a skill already gained — words, eye contact, pointing, play or steady walking that disappears. A brief dip during illness usually recovers; act when a clear skill is lost and does not return over a few weeks, or when several skills slip together. Any genuine loss of established skills deserves a prompt developmental check.
Read the answer AnswerWhen to Worry About Down Syndrome at 12-18 Months
Down syndrome is present from birth and is almost always identified at or soon after birth through examination and genetic testing — not something that newly appears at 12–18 months. At this age, watch general milestones, and see your paediatrician for any delay. Diagnosis is confirmed only by a clinician.
Read the answer AnswerWhen to Worry About FASD at 12–18 Months
FASD is caused by alcohol exposure in pregnancy, not by anything in toddlerhood, and a full diagnosis usually cannot be confirmed at 12–18 months. At this age, watch general development — growth, feeding, movement and early communication — and share any known prenatal alcohol history honestly. Confident assessment comes later, in the preschool and school years; for now a general developmental check is the right step. Only a Pinnacle clinician can assess, never an online form.
Read the answer AnswerWhen should I worry about genetic syndromes at 12–18 months?
Most toddlers develop at their own pace, but a cluster of signs between 12 and 18 months — significant motor delay, no babbling or words, low muscle tone, feeding difficulties or distinctive physical features — is worth a closer look. Many genetic syndromes are found before birth; some become clearer as development unfolds. Only a clinician, usually starting with your paediatrician, can assess what's underneath.
Read the answer AnswerWhen should I worry about Global Developmental Delay at 12–18 months?
Worry is reasonable if your 12-to-18-month-old shows delays in two or more areas — movement, speech, social or thinking skills — or loses skills they once had. A single slow area is often normal; a pattern is the flag to check. Only a clinician can confirm GDD.
Read the answer AnswerWhen to worry about prematurity-related developmental risk at 12–18 months
For toddlers born prematurely, always judge milestones by corrected age (from the due date) up to about two years. With that adjustment, most catch up well. Seek a developmental check if, by corrected 12–18 months, your child isn't pulling to stand or walking with support, isn't babbling or using first words, shows little pointing or shared interest, or seems stiff or floppy on one side. Only a clinician can assess.
Read the answer AnswerWhen to worry about Rett Syndrome at 12–18 months
Rett Syndrome is rare and almost always affects girls, with typical early development followed by a slowing or loss of skills, usually between 6 and 18 months. In the 12–18 month window the signal to act on is regression — losing hand skills or words she once had, repetitive hand movements, slowing head growth or new unsteadiness — not a single delayed milestone. Because it has a genetic basis, any suspected loss of skills warrants a prompt paediatric and developmental review. A diagnosis is formed only at a Pinnacle centre under clinician care, never from a checklist.
Read the answer AnswerWhen to Worry About Epilepsy in an 18–24-Month-Old
Epilepsy is a medical condition needing prompt doctor review, not therapy-first watching. At 18–24 months, act if you see repeated unexplained episodes — staring spells you can't interrupt, sudden stiffening or jerking, clusters of head-nods or drops, or loss of awareness. Any seizure with fever, breathing change, or one lasting beyond ~5 minutes needs urgent medical care. Only a doctor can confirm whether episodes are seizures.
Read the answer AnswerWhen should I worry about my toddler's sleep difficulties?
Broken nights and bedtime resistance are very common at 18–24 months and usually normal. Worry when problems are frequent, last many weeks, and affect daytime mood, growth or family wellbeing. Loud snoring with breathing pauses, or seizure-like night movements, are medical flags needing prompt review — not sleep training.
Read the answer AnswerWhen should I worry about regression at 18-24 months?
Between 18 and 24 months, regression means losing skills a child clearly had — words, waving, eye contact, play or steady walking. Unlike taking longer to learn, this is going backwards from a known baseline, and at this age it always deserves a prompt developmental check rather than waiting. Most causes are far more manageable when reviewed early.
Read the answer AnswerWhen Should I Worry About Down Syndrome at 18–24 Months?
Down syndrome is a genetic condition present from birth and is almost always identified at or soon after birth via physical signs and a blood test — it does not newly appear at 18–24 months. What matters at this age is watching overall development; any delay deserves a general check, not a feared label.
Read the answer AnswerWhen to Worry About FASD in a Toddler
FASD is caused by alcohol exposure during pregnancy, not by anything a toddler does — so at 18–24 months it is not diagnosed from a behaviour checklist. A clinician considers it where there is a known or possible history of prenatal alcohol exposure alongside differences in growth, milestones or regulation. Sharing that history honestly is protective, not blameworthy. Only a Pinnacle clinician can assess; never an online form.
Read the answer AnswerWhen to worry about genetic or chromosomal syndromes at 18–24 months
Between 18 and 24 months, seek a check when you see a pattern rather than one isolated sign — several delays together (few words, not walking, low tone, feeding trouble), distinctive physical features, loss of skills, or a family history of genetic conditions. A single late milestone is rarely alarming; a cluster, or losing skills, always warrants prompt clinician review. Only a clinician can assess what's underneath.
Read the answer AnswerWhen should I worry about Global Developmental Delay at 18–24 months?
At 18–24 months, worry is reasonable if your child is behind in two or more areas at once — movement, words, understanding, play — or has lost skills. One slow area often catches up; a pattern across several is the real flag. Worry is a reason to check, not a diagnosis.
Read the answer AnswerWhen to worry about prematurity-related developmental risk at 18–24 months
For a premature toddler, always judge milestones by corrected age (from the due date) up to about 2 years. At 18–24 months, seek a developmental check if, by corrected age, your child has no clear words, isn't walking, doesn't point or share interest, or has lost a skill. These are reasons to assess early—not a diagnosis—because early support works best.
Read the answer AnswerWhen should I worry about Rett Syndrome at 18–24 months?
Rett Syndrome is rare and shows itself mainly through regression — a toddler losing skills she once had, especially purposeful hand use, often between 12 and 30 months. At 18–24 months, seek prompt paediatric and developmental review if your child has lost hand skills, shows repetitive hand-wringing or washing movements, has slowing head growth, or has lost words or social connection. These are reasons to assess promptly, not a diagnosis — early review means earlier support.
Read the answer AnswerWhen should I worry that my 2-year-old might have epilepsy?
Most unusual spells in two-year-olds — breath-holding, fainting, shudders, a single fever fit — are not epilepsy, which means repeated, unprovoked seizures diagnosed by a doctor. Worry and seek prompt medical care for stiffening or jerking with loss of awareness, repeated staring spells, seizures without fever, or any fit lasting over 5 minutes. This is a doctor-first path, confirmed only by a clinician, never an online checklist.
Read the answer AnswerWhen should I worry about my 2-year-old's sleep?
Frequent night-wakings and bedtime resistance are common and usually normal at two. Worry when sleep problems persist most nights over weeks, drain your child by day, or come with snoring, gasping or breathing pauses — that last needs prompt medical review. A clinician can see the whole picture.
Read the answer AnswerWhen should I worry about regression in my 2-year-old?
Developmental regression — losing skills a child clearly had, such as words, eye contact, play or steady walking — is a serious flag at any age and warrants prompt review, never a wait-and-see. This differs from being slow to gain new skills. A loss alongside seizures, unsteadiness or muscle changes needs prompt medical attention. Only a clinician can assess what's underneath.
Read the answer AnswerWhen should I worry that my 2-year-old might have Fetal Alcohol Spectrum Disorder?
FASD is a prenatal condition caused by alcohol exposure in the womb — not by anything after birth. At 2 years it is not diagnosed from one sign, but from the whole picture: known prenatal alcohol exposure, growth, facial features and development. If you know there was alcohol in pregnancy, that alone warrants a gentle clinical conversation. Only a Pinnacle clinician can assess, never an online form.
Read the answer AnswerWhen should I worry my 2-year-old has a genetic or chromosomal syndrome?
Many genetic and chromosomal syndromes are recognised at or near birth, but some emerge in the toddler years as a pattern of developmental delay rather than one sign. By age two, worth gently watching: no single words, not walking, low muscle tone, distinctive features your doctor has noted, or loss of skills. None confirms a syndrome — but a persistent pattern is a good reason for a developmental check, not waiting.
Read the answer AnswerWhen should I worry that my 2-year-old might have Global Developmental Delay?
Worry is reasonable when a two-year-old is behind in two or more areas at once, loses skills, or feels persistently delayed — but worry is not a diagnosis. One delayed area is often a phase; a pattern across areas is the flag to check. Only a clinician can confirm Global Developmental Delay.
Read the answer AnswerWhen should I worry that my 2-year-old might have prematurity-related developmental risk?
For a child born premature, milestones at two are best judged from their corrected age — their due date, not their birth date — until around age two. Prematurity-related developmental risk doesn't mean something is wrong; it means we watch progress closely. A check is warranted if there's a clear, persistent lag across areas even after correcting for age, or any loss of skills already gained.
Read the answer AnswerWhen should I worry that my 2-year-old might have Rett Syndrome?
Rett Syndrome (ICD-11 LD90.0) is a rare genetic condition seen mostly in girls. Its hallmark is regression — losing skills already gained, especially purposeful hand use and spoken words, usually between 6 and 18 months — often with repetitive hand movements and slowing head growth. By age two, any clear loss of established skills warrants a prompt paediatric review and genetic testing. Diagnosis is medical and is never made from a checklist.
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