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Does My Child Need Speech Therapy? Signs of Speech Delay

Speech and language delay is the most common developmental concern in early childhood — affecting roughly 1 in 5 children. If a toddler is not meeting expected milestones, or shows a plateau or regression, an evaluation by a speech-language pathologist (SLP) is recommended. Early intervention (free for children under 3 under federal law) consistently produces the best developmental outcomes [2].

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Lena Park, PNP — Pediatric Nurse Practitioner

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What are typical speech and language milestones?

Speech (the sounds and words a child produces) and language (understanding and using words to communicate) develop together but on slightly different timelines. ASHA publishes evidence-based developmental milestones used by clinicians and parents to identify when a child may be falling behind 3.

| Age | Milestone | |---|---| | 12 months | Babbling with intonation; "mama," "dada" with meaning; responds to name | | 15 months | 5–10 words; points to objects or pictures when named | | 18 months | ~20 words; understands simple instructions ("get your shoes") | | 24 months | 50+ words; two-word phrases ("more juice," "daddy go"); strangers understand ~50% of speech | | 36 months | 200+ words; mostly three-word sentences; strangers understand ~75% of speech | | 48 months | Speaks in sentences; most people can understand almost all of what child says |

Language comprehension generally runs ahead of expressive speech. A child who clearly understands a lot but speaks little has a different profile than one who lags in both understanding and speaking.

What signs should prompt an evaluation?

These are red flags to discuss with your pediatrician or to bring directly to an SLP evaluation:

  • No babbling by 12 months
  • No single words by 16 months
  • No two-word phrases by 24 months
  • Loss of previously acquired language skills at any age — regression is always worth evaluating promptly 1
  • Difficulty being understood: strangers cannot understand a large proportion of speech after age 3
  • No response to name by 12 months (also a potential hearing or autism screening prompt)
  • Persistent frustration, tantrums, or withdrawal that may reflect communication difficulty
  • Your gut feeling: parents are often the first to notice something is different, even before formal milestones are missed

Speech delays can be isolated or part of a broader developmental picture. An SLP evaluation helps clarify which is the case, and — critically — identifies hearing loss early, since undetected hearing problems are among the most common and treatable causes of speech delay.

What does a speech-language pathologist evaluation involve?

A speech-language pathologist (SLP) is a licensed clinician who specializes in communication disorders — speech sounds, language comprehension and expression, voice, fluency, and swallowing — across the full lifespan. ASHA defines the full scope of SLP practice and maintains the field's evidence-based guidelines 3.

For a toddler or young child, an SLP evaluation typically includes:

  • Parent interview: developmental history, family history, hearing status, feeding concerns
  • Structured observation and play: how the child communicates, responds, and uses language naturally
  • Standardized assessments: age-referenced tests of receptive language (what the child understands) and expressive language (what the child says)
  • Speech sound assessment: how clearly the child produces sounds for their age

Based on findings, the SLP may recommend: - Monitoring without formal intervention - Parent coaching (strategies to use at home) - Direct therapy targeting specific goals - Referral for a hearing evaluation (always performed early in any speech delay workup) - Referral for developmental pediatrics, neurology, or early intervention services

How do I access a speech evaluation?

Talk to your pediatrician first. The AAP recommends developmental surveillance at every well-child visit and formal screening at 9, 18, and 24–30 months 1. Your pediatrician can screen for speech delay and provide a referral to an SLP. Raise concerns at every visit and do not wait to see if the child "grows out of it" — earlier help consistently produces better outcomes.

Early intervention (children under age 3). Under Part C of the Individuals with Disabilities Education Act (IDEA), children under three with a suspected developmental delay are entitled to a free evaluation and services through their state's early intervention program 2. A doctor's referral is helpful but not required — parents can contact their state's program directly. The CDC maintains a state-by-state directory to help families connect.

School-based services (ages 3 and up). Once a child turns three, evaluation and services may be available through the public school district at no cost to families, if the delay meets eligibility criteria under IDEA Part B.

Private SLP services. Many families supplement or access services privately. Health insurance coverage of speech therapy varies widely. Gale's pediatric clinicians can help with referrals and paperwork.

What factors influence how well speech therapy works?

The evidence consistently shows that earlier intervention produces better outcomes — both in the degree of improvement and the time needed to achieve it. Key factors include:

  • Age at start: children under three often respond quickly, in part because the brain is in a peak period of language development
  • Nature of the delay: isolated speech sound errors respond differently than language comprehension deficits or delays linked to hearing loss or autism
  • Parent involvement: parent-implemented strategies between sessions (reading aloud, narrating daily activities, expanding on what the child says) amplify the effects of direct therapy
  • Hearing status: any undetected hearing loss that is treated early dramatically changes the trajectory

A randomized controlled trial published in *Pediatrics* found that parent-implemented early intervention for toddlers with language delays produced significant gains in expressive language versus no-treatment controls 4.

Common questions

Is my bilingual child at higher risk for speech delay?

Bilingual children may say fewer words in each language individually, but their total word count across both languages is typically normal. True speech delay is just as identifiable in bilingual children. An SLP experienced in bilingual development can evaluate the child appropriately and will assess vocabulary across both languages.

My son is 2 and barely talks, but his sister was the same and she's fine now. Should I wait?

Some children are 'late talkers' who catch up on their own, but there is no reliable way to predict which child will catch up and which will benefit from early intervention. An SLP evaluation at this age carries no harm and can provide reassurance or a head start on therapy if needed. The AAP notes that one in five children will talk later than peers — but that doesn't mean all will catch up without support [1].

Can too much screen time cause speech delay?

Excessive passive screen time — especially when it displaces face-to-face interaction — is associated in observational studies with slower language development. The AAP recommends limiting screen time for children under 18–24 months (except video chatting). More back-and-forth conversation, reading aloud, and play are the most effective language builders at any age.

My child's speech delay was just noticed at age 4. Is it too late to benefit from therapy?

No. While starting earlier tends to produce faster gains, speech therapy is effective at age 4 and beyond. Many children who begin therapy in preschool or early elementary school make substantial progress. An SLP evaluation at any age is worthwhile if you have concerns.

Talk to a clinician

Lena Park, PNP — Pediatric Nurse Practitioner

kids & teens — sick visits, checkups. Gale can match you with a licensed clinician for a visit.

Find care →

When to seek evaluation promptly

  • —Loss of words or communication skills a child previously had (language regression)
  • —No response to their name by 12 months
  • —No pointing or gesturing by 12 months
  • —No words by 16 months
  • —No two-word phrases by 24 months
  • —Any concern about hearing

This article provides general developmental education and is not a clinical assessment. Every child is unique — a speech-language pathologist can evaluate your child's individual profile.

References

  1. 1.American Academy of Pediatrics (2023). Language Delays in Toddlers: Information for Parents. HealthyChildren.org. link ✓AAP guidance that 1 in 5 children will talk or use words later than peers; red flags for speech delay; recommendation for early evaluation and intervention; guidance on early intervention services under IDEA Part C and Part B
  2. 2.Centers for Disease Control and Prevention (2024). Early Intervention (IDEA Part C). CDC Learn the Signs. Act Early.. link ✓Under IDEA Part C, children under 3 with suspected developmental delays are entitled to free evaluation and services through state early intervention programs; parents can contact programs directly without a physician referral; early action significantly improves outcomes
  3. 3.American Speech-Language-Hearing Association (2024). ASHA's Developmental Milestones: Birth to 5 Years. ASHA Public Resources. link ✓ASHA evidence-based communication developmental milestones from birth through age 5, used to identify when a child may need SLP evaluation; scope of SLP practice including assessment and treatment of childhood communication disorders
  4. 4.Roberts MY, Kaiser AP (2015). Early Intervention for Toddlers With Language Delays: A Randomized Controlled Trial. Pediatrics. doi:10.1542/peds.2014-2134 ✓RCT (Roberts & Kaiser 2015, Pediatrics): parent-implemented enhanced milieu teaching for toddlers with language delays produced significant gains in receptive language vs. controls; supports early SLP-guided intervention

4 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.