Speech Delay in Toddlers: Why Catching Up Is Not the Question

Indonesian paediatricians already put a number on late

IDAI puts it at 5% to 8% of preschool-age children, and its article on keterlambatan bicara opens by quoting the sentence parents actually say, which is Ah, tidak apa-apa, nanti juga bisa bicara. It names that sentence as the reason children with speech and language problems reach a doctor late.

On Jakarta specifically it is more careful, and the care is worth copying. It writes that angka resmi untuk gangguan ini belum ada and gives the city figure as an estimate at 21%, which is a different kind of statement from the prevalence range and should be read as one.

The milestones underneath those numbers are ordinary. At 12 months a baby already understands about 70 words, at 15 months might say 3 to 6 meaningful ones, and by 18 months has somewhere between 5 and 50.

Intelligibility is the part parents tend to underrate. At two years about 50% of what a child says can be understood by someone outside the family, and it is only at four years that IDAI expects speech to be fully understood by other people.

Is it true that he will catch up?

Mostly yes, and that is the finding people stop reading at. Rescorla's review of late talkers in Developmental Disabilities Research Reviews reports that most late talkers attain language scores in the average range by age five, six, or seven.

The same review carries the sentence that changes the decision. Late talker groups typically obtain significantly lower scores than groups with typical language histories on most language measures into adolescence.

Her longest follow-up makes that concrete. It compared 26 children identified as late talkers, all with normal nonverbal ability and normal receptive language at intake, against 23 typically developing children matched on age, socioeconomic status and nonverbal ability, and at 17 every one of them tested in the average range while the late talkers still scored significantly lower on Vocabulary and Grammar and on Verbal Memory.

So catching up is real, and it is not the same thing as being unaffected. That gap is why the useful question is what kind of delay this is, rather than how many more months to give it.

The milestone charts were rewritten to stop you waiting

In 2022 the CDC's Learn the Signs. Act Early. program and the American Academy of Pediatrics published a revision of the developmental surveillance checklists in Pediatrics, and the working group wrote its reason into the paper. One stated goal was to clarify when most children can be expected to reach a milestone, to discourage a wait-and-see approach.

The mechanism is a threshold change rather than a new list of skills. A milestone now has to be one that most children, meaning 75% or more, would be expected to achieve by a given health supervision visit, instead of the age at which an average child gets there.

That is a larger edit than it sounds. Adding milestones for the 15 and 30 month visits and applying the new criteria produced a 26.4% reduction and 40.9% replacement of the previous checklist, and among retained milestones that moved, 67.7% moved to older ages.

Read that last figure honestly, because it cuts both ways. Some things genuinely are normal later than the old charts implied, and the checklist you are handed now is the one most children have already passed, so falling short of it is a reason to ask rather than a reason to wait.

Which signs should send you to a doctor, and at what age?

IDAI publishes two lists, and they overlap in a useful way. The shorter one, in its article on keterlambatan bicara, flags no babbling and no head turn towards a name in the first months, no pointing with a finger at 12 months, no meaningful word at 16 months, and no understandable two-word sentence at 24 months.

The longer list, written by Dr Catharine M Sambo, adds the items parents miss. No sound at all by 6 months, no babbling by 12 months, no word that is not echo or imitation at 16 months, no pointing to show interest in an object at 20 months, little sharing of attention at 20 months, no meaningful phrase after 24 months, a parent who still cannot understand the child at 30 months, frequent repeating of other people's words at 30 months, inconsistent responses to sound, and loss of speech the child already had.

One item sits outside the age grid entirely. IDAI writes that at any age you take the child to a doctor if there is kemunduran, a going backwards in speech or in social ability, and that one does not wait for the next birthday.

Where do you get a child screened in Indonesia?

At the posyandu or puskesmas, free, on a schedule that already exists. The programme is SDIDTK, and Dinas Kesehatan Kota Semarang sets it out as three pillars, stimulasi dini for children from birth to 72 months, deteksi dini as the skrining that finds a deviation early, and intervensi dini as the correction that follows.

The screening instrument is the KPSP, the Kuesioner Pra Skrining Perkembangan, and it runs at 16 fixed ages. Those are 3, 6, 9, 12, 15, 18, 21, 24, 30, 36, 42, 48, 54, 60, 66 and 72 months, which means there is a checkpoint no more than six months away from wherever your child is sitting right now.

IDAI is direct about the youngest group. Orangtua perlu membawa anaknya ke Puskesmas untuk pemeriksaan skrining, terutama untuk anak usia dibawah 2 tahun, it says, and that line appears in an article about long-term consequences rather than in a leaflet about routine visits.

There is a research argument for the same window. Rescorla notes that expressive language screening at 18 to 35 months serves a public health function, because it catches the children whose expressive delay is secondary to autism spectrum disorder, intellectual disability, hearing impairment, receptive language delay or demographic risk.

Will putting him in playgroup fix it?

Not on its own, and IDAI says so in a sentence worth quoting against our own interest. Penanganan sebaiknya dikonsultasikan dulu ke dokter tumbuh kembang anak, bukan hanya terbatas pada menyekolahkan anak saja.

The reason is that a speech delay is a symptom with several possible causes underneath it. IDAI lists hearing loss, disorders of the brain including specific receptive or expressive language disorder, autism, and problems with the oral structures that produce sound, and it says establishing which one is at work needs a careful examination that sometimes takes a paediatrician, an ENT doctor and a child psychologist or psychiatrist working together.

A playgroup treats none of those, and an unnamed hearing problem in particular costs more the longer it runs. What a group setting does give a child, whether that is a playgroup or an early education centre, is more talk aimed at them and more reason to use words, which is worth having and is not a substitute for the appointment.

If the search that brought you here is really about a suspected developmental difficulty rather than enrichment, the therapy and development category is where those providers sit. The order that helps is evaluation first and booking second, because a therapist works from a diagnosis rather than towards one.

At home, while you wait for the appointment

Talk more, and know that this is the intervention with evidence behind it rather than folk advice. Roberts and Kaiser pooled 18 studies of parent-implemented language interventions for children between 18 and 60 months in the American Journal of Speech-Language Pathology, and reported a significant, positive impact on both receptive and expressive language, in children with and without intellectual disabilities.

IDAI's version of the same advice is a short list of unremarkable things. Reading aloud clearly, holding conversations with a baby or a child, answering their babble with simple words, answering their questions, and singing.

One line in that article is the one to put on the fridge. Gawai dan televisi bukan metode stimulasi yang baik, which is IDAI stating plainly that a screen does not do this job, however much language comes out of it.

None of this replaces the check, and it is not meant to. It is what fills the weeks between deciding that something is off and getting a professional opinion, and it is also what a therapist would end up coaching you to do anyway.

What happens after the delay closes?

You keep watching, for longer than it feels necessary to. IDAI reports that of the speech and language disorders identified at age 5, 72% were still present at age 12, which is the figure that argues against treating a discharge from therapy as the end of the story.

What to watch is specific rather than vague. IDAI names academic performance, particularly anything involving reading, writing and understanding sentences, alongside emotional development, behaviour, and the child's relationships with peers.

This is also why the research describes language delay as dimensional rather than binary. Rescorla's framing is that late talkers and typically developing children differ quantitatively along a spectrum of language ability, which is a more usable model for a parent than a line a child either crosses or does not.

A place to start this week

The short version is that three things are worth doing and none of them costs anything. Check your child's age against the IDAI red flags above, check whether they are near one of the 16 KPSP ages, and book the posyandu or puskesmas screening instead of waiting for the next birthday.

If a red flag is present, ask for the referral rather than the reassurance, and remember that a loss of skills at any age skips the queue entirely. Everything in between is talking, reading and singing, with the screen off.

Enrichment is a separate decision and a reasonable one on its own terms. You can see what is running near you on the Jakarta activities listing, where some providers offer free trials so you can watch a session before you commit, and our guide to child development milestones covers the domains this post leaves out.

One thing to be clear about, because it matters here more than usual. Happy Kamper is a directory with reviews and bookings, not a clinical record, so we hold no assessments, therapy notes or treatment plans, and a listing with us is not a verification of anyone's therapy credentials.