The Quick Answer
You should be concerned about delayed speech if your child is not meeting age-appropriate language milestones, such as not babbling by 12 months, not using single words by 16 months, or not combining two words by 24 months. Other red flags include a loss of previously acquired language skills at any age, a lack of response to their name, or difficulty understanding simple directions. If you notice any of these signs, it is time to speak with a board-certified pediatrician.
Every Child Talks on Their Own Timeline, But Some Clues Matter
As a parent, few things are as exciting as hearing your child say their first word. And few things are as worrying as wondering why they have not said it yet.
The truth is, children develop language at different rates. Some toddlers are chatterboxes by 18 months, while others take a quieter approach before suddenly stringing sentences together. That natural variation is completely normal, and it is something the pediatricians at Idaho Falls Pediatrics hear about every single day.
But here is what is also true: speech and language delays can sometimes signal an underlying condition that benefits greatly from early identification and early intervention. The earlier a concern is identified, the more effective treatment tends to be.
So how do you know the difference between a late talker and a child who needs a closer look? Below, we walk you through 11 developmental clues that parents and caregivers should watch for, organized by age and type of concern.
Understanding Speech Delay vs. Language Delay
Before we dive into the clues, it helps to understand the difference between two commonly confused terms.
Speech delay refers to difficulty with the physical production of sounds and words. It is about how clearly and accurately a child forms words and sentences.
Language delay refers to difficulty with understanding or using language to communicate. This includes both expressing thoughts (expressive language) and understanding what others say (receptive language).
A child can have one without the other, or both at the same time. A pediatrician will help determine which type of concern is present and what steps make sense next.
Normal Speech and Language Milestones: A Quick Reference
Pediatricians use developmental milestones, which are research-based benchmarks published by organizations like the American Academy of Pediatrics (AAP) and the Centers for Disease Control and Prevention (CDC), to monitor healthy development. Here is a simplified overview:
12 months:
- Babbles with consonant sounds (ma, ba, da)
- Uses gestures like waving or pointing
- Responds to their name
- Says one or two simple words like “mama” or “dada”
18 months:
- Uses at least 6 to 10 words consistently
- Points to objects or pictures when named
- Follows simple one-step directions (“Come here,” “Give me that”)
24 months:
- Uses at least 50 words
- Begins combining two words (“more juice,” “daddy go,” “big dog”)
- About 50% of speech should be understandable to strangers
36 months:
- Uses sentences of 3 to 4 words
- Vocabulary of 200 or more words
- About 75% of speech understood by strangers
- Asks “who,” “what,” and “where” questions
Keep in mind: these are general guidelines. If your child is near a deadline but otherwise developing well in other areas, your pediatrician can help you interpret what you are seeing in context.
11 Developmental Clues That May Signal a Speech Delay
Clue 1: No Babbling by 12 Months
Babbling, those delightful strings of consonant-vowel sounds like “bababa” or “mamama,” is one of the earliest building blocks of language. It is how babies practice making sounds and engaging in back-and-forth communication.
If your baby is not babbling by 12 months, that is worth bringing up at your next well-child visit. A lack of babbling at this stage can sometimes indicate hearing difficulties or early developmental differences.
Clue 2: No Pointing or Gesturing by 12 Months
Before children use words, they use gestures. Pointing to objects, waving goodbye, and reaching for things are all early forms of intentional communication. These gestures are called “joint attention” behaviors, and they are a critical milestone in social-communicative development.
If your 12-month-old is not pointing, waving, or using other gestures to communicate wants and interests, talk to your pediatrician.
Clue 3: Not Saying Any Single Words by 16 Months
Most children say their first real words, meaning words that are used consistently and meaningfully, somewhere between 12 and 15 months. By 16 months, most children have at least a handful of words in regular use.
If your child is 16 months old and not yet using any words (beyond “mama” and “dada”), that is a meaningful clue that merits a professional evaluation.
Clue 4: Not Combining Two Words by 24 Months
Two-word combinations like “more milk,” “daddy up,” or “my ball” represent a significant leap in expressive language. They show that a child understands how language works as a system, not just as labels for things, but as a tool for making requests, describing events, and expressing needs.
If your 2-year-old is still using only single words and has not begun pairing them together, bring this up with your child’s doctor. This is one of the most commonly watched milestones in early childhood.
Clue 5: Speech That Is Hard to Understand
At age 2, at least 50% of what a child says should be understandable to unfamiliar adults. By age 3, that number increases to about 75%. Then, by age 4, most of what a child says should be fully intelligible to strangers.
If your child is consistently speaking in ways that only close family members can decode, and they are beyond these age ranges, an evaluation by a speech-language pathologist (SLP) may be helpful.
Clue 6: Not Responding to Their Name
Consistently failing to respond to their name is one of the most important early warning signs parents can watch for. It may suggest a hearing issue or, in some cases, may be an early indicator of autism spectrum disorder (ASD).
This is not about a toddler being distracted once or twice. We are talking about a consistent pattern of non-response that does not change even when there are no competing stimuli. If this sounds like your child, do not wait. Schedule an appointment with your pediatrician as soon as possible.
Clue 7: Difficulty Understanding Simple Instructions
Language development is not only about speaking. It is equally about understanding, which experts call receptive language. A child who has difficulty following simple directions (“Bring me your shoes,” “Sit down,” “Where is the dog?”) may have a receptive language delay, even if they produce some words.
Receptive language delays can sometimes fly under the radar because children are very good at using context clues and reading body language to compensate. A pediatrician or SLP can assess this more formally.
Clue 8: Loss of Previously Acquired Language Skills
This is one of the most urgent clues on this list. If a child who was previously saying words or phrases suddenly stops using them, a pattern sometimes called language regression, that warrants prompt medical evaluation.
Language regression can occur in some cases of autism spectrum disorder and in rare but serious neurological conditions. It should never be dismissed as a phase.
Clue 9: Unusual Voice Quality or Persistent Stuttering
Some disfluency (repetition of sounds or words) is completely normal between ages 2 and 5 as children’s language systems develop faster than their motor speech abilities. This is called developmental disfluency, and it often resolves on its own.
However, if stuttering is accompanied by visible tension, facial grimacing, avoidance of speaking, or persists beyond age 5, a speech-language pathologist evaluation is recommended. Similarly, a consistently unusual voice quality, such as a very nasal, hoarse, or strained voice, may indicate a structural or neurological concern worth evaluating.
Clue 10: No Interest in Social Communication
Language does not develop in a vacuum. It develops through relationships and interaction. Children who show little interest in communicating with others, who rarely make eye contact, who do not seek to share experiences or get the attention of caregivers, may be showing signs of a social communication disorder, including autism spectrum disorder.
Early identification of ASD, in particular, is associated with significantly better long-term outcomes when early intervention services are put in place. If your child seems unusually disinterested in social interaction and communication, discuss this with a board-certified pediatrician.
Clue 11: A Bilingual Environment With No Words in Either Language
It is a common misconception that bilingualism causes speech delay. Research consistently shows that children raised in bilingual households develop language on roughly the same overall timeline as monolingual children. Their vocabulary may be distributed across two languages, but their total word count across both languages combined should still meet expected milestones.
If a child in a bilingual home is not producing words in either language by expected ages, the bilingual environment is not to blame, and the concern should be evaluated the same way it would be for any child.
What Causes Speech and Language Delays?
Understanding the root cause of a speech delay is important because different causes call for different approaches. Some common contributing factors include:
- Hearing loss or chronic ear infections (otitis media): Hearing is the foundation of language development. Even mild, intermittent hearing loss from repeated ear infections can impact language acquisition. An audiological evaluation is often one of the first steps in a speech delay workup.
- Oral-motor difficulties: Some children have difficulty coordinating the lips, tongue, and palate needed for clear speech. This is called childhood apraxia of speech or dysarthria, depending on the nature of the difficulty.
- Developmental disabilities: Conditions such as autism spectrum disorder, Down syndrome, or intellectual disability often affect language development.
- Neurological conditions: Rare conditions affecting the brain or nervous system can impact speech and language.
- Environmental factors: Limited verbal interaction at home, excessive screen time in place of conversation, or significant stress in the household can affect language development.
- Prematurity: Children born prematurely are at higher risk for language delays and are often followed closely by their pediatric care team for developmental milestones.
In many cases, no single clear cause is identified, and children simply benefit from speech-language therapy to build their communication skills.
What Happens During a Speech Delay Evaluation?
If your pediatrician has concerns about your child’s speech or language development, the evaluation process typically involves several steps:
- A developmental screening at your child’s well-child visit using validated tools (such as the M-CHAT for autism or the ASQ for general development).
- A hearing test (audiogram or tympanometry) to rule out hearing loss as a contributing factor.
- A referral to a speech-language pathologist (SLP) for a formal evaluation of both expressive and receptive language.
- Possible referral to a developmental pediatrician, neurologist, or audiologist depending on the findings.
The process is collaborative and family-centered. Your observations as a parent are extremely valuable. In fact, they are often the most important information the care team receives.
When to Call Idaho Falls Pediatrics
You do not have to wait until your next scheduled well-child visit to raise a concern. If you have noticed any of the clues described above, or if something about your child’s communication simply does not feel right to you, reach out to the team at Idaho Falls Pediatrics.
The providers at IF Peds are experienced in developmental monitoring and will take your concerns seriously. Whether your child needs a simple reassurance, a hearing test, or a referral to an early intervention program, having that conversation sooner is always better than waiting and wondering.
You can also use the Symptom Checker on the Idaho Falls Pediatrics website to help guide your next step, and visit the Resources page for additional patient education materials.
Early Intervention: Why Timing Matters
If a speech or language delay is identified, early intervention services, typically provided through a speech-language pathologist, can make a meaningful difference. The developing brain is highly responsive during the early childhood years, particularly between birth and age 5. This window of neuroplasticity means that therapy started early tends to be more effective and more efficient.
In the United States, children under the age of 3 who qualify for early intervention services may receive them through their state’s Early Intervention program at no cost to families, under the Individuals with Disabilities Education Act (IDEA). Children ages 3 and older may qualify for school-based services through their local school district.
Your pediatrician at Idaho Falls Pediatrics can guide you through the referral process.
Frequently Asked Questions
Q: Is it normal for boys to talk later than girls?
A: There is some evidence that girls, on average, develop language slightly earlier than boys. However, the difference is modest, and it does not mean that significant milestones should be consistently missed. Boys should still be evaluated if they are not meeting key milestones at the expected ages.
Q: Can too much screen time cause a speech delay?
A: Research suggests that excessive passive screen time, particularly background television, may be associated with reduced language input to young children. The American Academy of Pediatrics recommends avoiding screen use (other than video chatting) for children under 18 months, and limiting screen time for children ages 2 to 5 to one hour per day of high-quality programming.
Q: My child understands everything I say but just does not talk much. Should I be worried?
A: A child who has strong receptive language but limited expressive language may be a “late talker.” Many late talkers catch up without intervention. However, if your child is not meeting expressive language milestones, it is still worth discussing with your pediatrician to determine whether monitoring or a formal evaluation is appropriate.
Q: Could my child just be shy?
A: Shyness can affect how much a child speaks in social situations, but it should not prevent language development at home with familiar caregivers. A child who communicates freely at home but is quiet in public is different from a child who has limited communication across all settings.
Q: What is the difference between a speech-language pathologist and a developmental pediatrician?
A: A speech-language pathologist (SLP) specializes in the assessment and treatment of communication disorders, including speech and language delays. A developmental pediatrician is a physician who specializes in evaluating children with developmental, behavioral, and learning concerns. Your pediatrician may refer to one or both depending on your child’s needs.
Q: At what age should I stop hoping my child will “just catch up on their own”?
A: There is no universal cutoff, and this is a conversation best had with your pediatrician. That said, waiting beyond 24 months when clear milestones have not been met is generally not recommended. Early intervention is almost always more effective than a prolonged wait-and-see approach.
Q: Does Idaho Falls Pediatrics offer developmental screenings?
A: Yes. Developmental screenings are a standard part of well-child visits at Idaho Falls Pediatrics. These visits are one of the most important tools for catching developmental concerns early. Schedule a visit or learn more about why a pediatrician matters for your child’s development.
Trust Your Parenting Instincts, and Your Pediatrician
You know your child better than anyone. If something feels off about how they are communicating, that instinct is worth honoring. Pediatricians and speech-language pathologists are not there to tell you that you worried for nothing. They are there to partner with you in making sure your child has every opportunity to thrive.
At Idaho Falls Pediatrics, the team has been partnering with parents to help children grow and thrive for over 25 years. From well-child visits and developmental screenings to thoughtful referrals and compassionate guidance, IF Peds is here to walk with your family through every stage of your child’s development.
If you have questions about your child’s speech or language development, do not wait. Contact Idaho Falls Pediatrics today and take that first step with confidence.
This article is intended for general informational and educational purposes only. It does not constitute medical advice and is not a substitute for professional evaluation by a licensed healthcare provider. If you have concerns about your child’s development, please consult a board-certified pediatrician.