Guide for Pediatricians: Language Disorders in Children

Detection, Management and Timely Referral

Introduction

Language is a fundamental tool for the cognitive, social and emotional development of the child. As pediatricians, we are the first line for early detection of possible delays or disorders. This guide will help you identify warning signs, understand management options, and know when to refer to appropriate specialists, such as an otolaryngologist or speech therapist.

Early intervention is key to optimizing the prognosis of children with language disorders.

Note on bilingualism: It is important to remember that language development in bilingual children can follow different patterns. Exposure to multiple languages ​​does not cause language delays, although the vocabulary in each language individually could be less, the sum of both is usually equal to or greater than that of a monolingual. Language mixing is a normal phase of the process. However, if there are red flags in the overall development of communication, evaluation is still necessary.

Language Development Milestones: What to Expect and When to Worry?

Click on each age to see milestones and red flags.

12 months (1 year)

Milestones: Babbles with communicative intent (e.g. "bababa", "dadada"), responds to name, recognizes "no", says "mom" or "dad" non-specifically, points to objects he wants.

Alarm Signs: Absence of babbling, does not respond to name, does not attempt to communicate with gestures, does not make eye contact when interacting.

18 months (1 year and a half)

Milestones: Says at least 6-10 words, points to body parts, follows simple commands ("give me the ball"), imitates sounds and words.

Alarm Signs: Less than 6 words, does not point to ask, does not imitate, does not understand simple commands.

24 months (2 years)

Milestones: Vocabulary of at least 50 words, combines 2 words ("more milk", "my car"), follows two-step commands, names common objects, half of his speech is intelligible to strangers.

Alarm Signs: Less than 50 words, does not combine words, does not follow two-step commands, incomprehensible speech, persistent echolalia (repeats words or phrases without communicative intent).

36 months (3 years)

Milestones: Speaks 3-4 word phrases, asks questions ("what is this?", "where is it?"), understands most of what is said to him, large and growing vocabulary, his speech is intelligible to most strangers.

Alarm Signs: Difficulty forming sentences, does not ask questions, very incomprehensible speech, does not participate in simple conversations.

4-5 years

Milestones: Clear and complex language, simple story telling, use of tenses (past, future), understands abstract concepts (e.g. "before", "after"), can maintain a conversation.

Alarm Signs: Difficulty narrating, persistent grammatical errors, very infantilized speech, difficulty following complex instructions, difficulty in social interactions with peers.

Frequent Causes of Language Disorders

Explore the most common causes of language disorders.

Hearing Loss

How does it manifest? Does not respond to sounds, high volume on TV/music, does not understand when spoken to from behind, poor language development.

Importance: Always discard! It is a common and treatable cause of language delay. Requires audiological evaluation.

Developmental Language Disorder (TDL) / Simple Language Delay

How does it manifest? Significant delay in language acquisition with no other apparent cause (normal hearing, typical cognitive development). Difficulties with grammar, vocabulary or sentence construction.

Importance: Diagnosis of exclusion. Many children benefit greatly from early speech therapy.

Autism Spectrum Disorders (ASD)

How does it manifest? Persistent difficulties in social communication and social interaction, and restrictive and repetitive patterns of behavior, interests or activities. Delayed or absent language is a common early sign.

Importance: It requires a multidisciplinary approach and early differential diagnosis.

Intellectual Disability (ID)

How does it manifest? Global developmental delay, including language, motor skills, and cognition. Language is usually proportional to the cognitive level.

Importance: Early intervention is crucial to maximize potential. Requires neuropsychological evaluation.

Verbal Dyspraxia (Childhood Apraxia of Speech)

How does it manifest? Difficulty planning and executing the movements necessary for speech, although the muscles are fine. The child knows what he wants to say but cannot produce the sounds correctly. He speaks unintelligibly, inconsistently, "he seems to be searching for words."

Importance: It requires intensive and specific speech therapy, differentiated from other phonological disorders.

Dysphonia/Voice Problems

How does it manifest? Hoarse, raspy voice, recurrent aphonia or notable changes in the tone and volume of the voice.

Importance: It may be due to vocal nodules (excessive/incorrect use of the voice), gastroesophageal reflux, allergies, or less frequently, other laryngeal pathologies. Requires ENT evaluation.

Oral/Orofacial Structural Anomalies

How does it manifest? Short lingual frenulum (ankyloglossia), cleft palate (hidden or evident), macroglossia, severe dental malocclusions, feeding difficulties.

Importance: They can make it difficult to articulate certain sounds or eat. They require ENT evaluation or maxillofacial/orthodontic surgery, depending on the case.

Initial Evaluation in the Pediatric Consultation: Your Quick Checklist

Use this interactive checklist in your consultation.

When to Derive? Your Traffic Light

Guide yourself by color to know when to act.

Green Light: Observe and Reevaluate

Situation: Mild expressive language delay, no other red flags, with preserved understanding. For example, a 20-month-old child with 15 words, but who understands everything and communicates well with gestures.

Action: Education for parents on language stimulation at home (reading, songs, interactive games, limiting screens). Reevaluate in 2-3 months.

Yellow Light: Suggest Intervention and/or Complementary Evaluation

Situation:

  • More significant delay in expressive or compressive language for age.
  • Persistent parental concern.
  • Difficulty with articulation that affects intelligibility.
  • Persistent hoarseness (more than 2-3 weeks) or voice changes.
  • Suspected restrictive tongue tie causing eating or speaking problems.

Action:

  • Refer to Speech Therapist: For full evaluation and possible early intervention.
  • Refer to an Otorhinolaryngologist (ENT): In case of any suspicion of hearing loss, recurrent/persistent serous otitis, hoarseness/persistent voice changes, evaluation of orofacial anomalies.

Red Light: Urgent Multidisciplinary Referral

Situation:

  • Absence of language or very limited from 18-24 months.
  • Loss of already acquired linguistic skills (regression).
  • Lack of social communication (does not point, does not look in the eyes, does not respond to his name).
  • Stereotypies or marked repetitive behaviors.
  • Suspected verbal apraxia (severe difficulty planning speech).

Action:

  • Refer to Speech Therapist: Evaluation and intensive therapy.
  • Refer to an Otorhinolaryngologist (ENT): To rule out organic causes, especially auditory.
  • Refer to Neuropediatrics and/or Child Development Unit: For comprehensive evaluation and ruling out neurodevelopmental disorders (ASD, ID, etc.).
  • Refer to Psychology/Psychopedagogy: For cognitive and behavioral assessment.

Interactive Clinical Cases: Test your Knowledge!

Select the best option for each case.

Clinical Case 1: Sofía, 2.5 years old

Sofía, 2.5 years old, has a vocabulary of about 20 words, she does not combine two words and her parents are worried. He responds to his name and likes to play with other children. Otoscopy is normal. His neonatal hearing screening was passed.

1. Observe and reevaluate in 3 months.
2. Refer directly to Speech Therapy.
3. Refer to Otorhinolaryngology for a hearing study.
4. Refer to Neuropediatrics.

Clinical Case 2: Marc, 4 years old

Marc, 4 years old, has had a persistently hoarse voice for 2 months. He has had no recent respiratory infections. His parents report that he usually screams a lot when playing. The rest of its development is typical.

1. Indicate vocal rest and reevaluate in 1 month.
2. Refer to Otorhinolaryngology for laryngeal evaluation.
3. Refer to Speech Therapy for vocal therapy.
4. It is not necessary to refer, it is normal in children who scream.

Clinical Case 3: Leo, 1.5 years old

Leo, 1.5 years old, does not babble, does not respond to his name consistently, does not make eye contact, and his parents notice that he prefers to play alone and line up his toys. Neonatal hearing screening was "referral" in both ears and the test has not been repeated.

1. Recommend more stimulation at home and reevaluate in 6 months.
2. Refer urgently to Otorhinolaryngology (audiometry) and Neuropediatrics/Child Development Unit.
3. Refer only to Speech Therapy.
4. You are too young to worry, many children are slow talkers.

Frequently Asked Questions (FAQ)

Answers to common doubts in the consultation.

Is it normal for my 3-year-old son to change letters when speaking (e.g. "toche" to "coche")?

It is common for children to present certain articulation difficulties until they are 4-5 years old. However, if your speech is difficult for strangers to understand most of the time, or if errors persist that should have disappeared by your age (such as early sound substitutions), a speech therapy evaluation is advisable.

My son seems to understand everything, but he hardly speaks, should I be worried?

A good level of understanding is a good sign. However, if expressive language is significantly below the milestones for their age (especially from 18-24 months with fewer than 50 words or no word combinations), they are considered a "late talker." Although many "catch up," speech therapy evaluation is essential to determine if DLD is present and provide early intervention if necessary.

How much screen time is recommended to avoid language problems?

Recommendations vary, but the use of screens in children under 18-24 months is generally discouraged (except video calls with family members). For children from 2 to 5 years old, a maximum of 1 hour a day of high-quality content is suggested and always with accompaniment. Excessive, non-interactive screen use can limit opportunities for verbal interaction and language development.

Useful Resources for Parents and Pediatricians

Here you will find links to support organizations and guides.

Language Stimulation Tips by Age (for Parents)

0-12 months:

  • Respond to baby's babbling and sounds.
  • Talk to him, sing to him and read to him.
  • Imitate the sounds the baby makes.

12-24 months:

  • Name objects that interest the child.
  • Use short, simple sentences.
  • Encourage him to point out what he wants and say simple words.
  • Read interactive stories.

2-3 years:

  • Ask open-ended questions (not yes/no).
  • Expand what the child says (if he or she says “water,” say “yes, you want fresh water”).
  • Encourage him to narrate events of the day.
  • Play role-play.

4-5 years:

  • Correct errors subtly by repeating the phrase correctly.
  • Encourage more complex story telling.
  • Play word, rhyming and sorting games.
  • Stimulate curiosity and questions.

Final Considerations

Remember that each child is unique. Early detection and timely intervention are the keys to optimizing language and communication development in children. Your role as a pediatrician is essential!

When in doubt, it is always better to refer for a specialized evaluation.

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