Speech & Communication

Speech Development Has Plateaued

Medically reviewed by Dr. Emily Torres, PhD, CCC-SLP · Pediatric Speech-Language Pathologist

Content reviewed against published ASHA, AAP, NIH guidelines

Editorial policy

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Speech and communication milestones vary widely, and worries about speech development has plateaued, here is what you need to know.

The short answer

A temporary plateau in speech development can be normal, especially when a child is focused on developing other skills like walking or problem-solving. However, a prolonged plateau lasting more than 2 to 3 months without any new words, improved understanding, or communication attempts warrants evaluation. True language plateaus may indicate that the child needs support to continue progressing. An SLP can determine whether the plateau is a normal developmental pause or a sign that intervention is needed.

Key takeaways

  • A temporary plateau in speech development can be normal, especially when a child is focused on developing other skills like walking or problem-solving. However, a prolonged plateau lasting more than 2 to 3 months without any new words, improved understanding, or communication attempts warrants evaluation. True language plateaus may indicate that the child needs support to continue progressing. An SLP can determine whether the plateau is a normal developmental pause or a sign that intervention is needed.
  • Usually normal when: Your child's speech paused briefly while they focused on learning to walk
  • Call your doctor if: Your child has not gained any new words or communication skills for more than 3 months
  • Varies by age — see the age-by-age breakdown below

This is one of the most common questions parents ask. Searching for answers means you care.

What Parents Should Know

According to ASHA, AAP, NIH guidelines, a temporary plateau in speech development can be normal, especially when a child is focused on developing other skills like walking or problem-solving. However, a prolonged plateau lasting more than 2 to 3 months without any new words, improved understanding, or communication attempts warrants evaluation. True language plateaus may indicate that the child needs support to continue progressing. An SLP can determine whether the plateau is a normal developmental pause or a sign that intervention is needed. At 12-18 months, brief pauses in word acquisition are common when a child is mastering motor skills like walking. However, pre-linguistic skills like gestures, babbling variety, and understanding should continue to develop even during a word plateau. It is generally considered normal when your child's speech paused briefly while they focused on learning to walk. However, you should contact your pediatrician promptly if your child has not gained any new words or communication skills for more than 3 months.

Sources: [1], [2], [3]

Normal vs. Concerning

Usually Normal
Worth Discussing
Your child's speech paused briefly while they focused on learning to walk
Your child has not gained any new words or communication skills for more than 3 months
Your child had a short plateau during illness but is adding words again
Your child's plateau is accompanied by loss of interest in communicating
Your child is still gaining understanding and communication skills even if new words have slowed
Your child is losing previously acquired words alongside the plateau

By Age

What to expect by age

12-18 months

Brief pauses in word acquisition are common when a child is mastering motor skills like walking. However, pre-linguistic skills like gestures, babbling variety, and understanding should continue to develop even during a word plateau.

18-24 months

Most children experience a vocabulary explosion during this period. If your child's vocabulary has not grown in 2 to 3 months, or if they are stuck well below 50 words by age 2, an evaluation is recommended.

2-3 years

A plateau at this age is more concerning. Children should be adding words steadily and beginning to combine them. If sentence length and vocabulary have not increased in several months, discuss this with your pediatrician or SLP.

3-4 years

A plateau after initial progress in therapy may indicate a need to change the therapeutic approach, increase session frequency, or investigate underlying factors. Discuss concerns with your child's SLP.

4-5 years

Persistent plateaus despite intervention may suggest a language disorder rather than a delay. A comprehensive evaluation can help differentiate and guide appropriate support.

What to Tell Your Pediatrician

  • Describe when you first noticed speech development has plateaued and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your child has not added new words for 2 to 3 months.
  • Mention if your child's speech progress has slowed significantly compared to earlier gains.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

What Should You Do?

When to take action

Probably normal when...
  • Your child's speech paused briefly while they focused on learning to walk
  • Your child had a short plateau during illness but is adding words again
  • Your child is still gaining understanding and communication skills even if new words have slowed
Mention at your next visit when...
  • Your child has not added new words for 2 to 3 months
  • Your child's speech progress has slowed significantly compared to earlier gains
  • Your child is in therapy but progress seems to have stalled
Act now when...
  • Your child has not gained any new words or communication skills for more than 3 months
  • Your child's plateau is accompanied by loss of interest in communicating
  • Your child is losing previously acquired words alongside the plateau

What You Can Do at Home

  • Keep track of when you notice speech development has plateaued — noting the time of day, duration, and any triggers can help your pediatrician.
  • Remember that your child's speech paused briefly while they focused on learning to walk — this is generally within the range of normal.
  • At 12-18 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
  • Talk, read, and sing to your baby frequently. Narrate daily activities to build language exposure.
  • While monitoring at home, seek immediate care if your child has not gained any new words or communication skills for more than 3 months.

Speech Progress Is Slow Despite Therapy

Speech and language progress can vary significantly from child to child. Some children make rapid gains once therapy begins, while others progress more gradually. It is important to remember that progress may not always look like new words. Improvements in understanding, attention, gestures, imitation, and social engagement are all meaningful gains. If your child has been in consistent therapy for 3 to 6 months without measurable progress, discuss this with your SLP. The therapy approach, frequency, or diagnosis may need to be reconsidered.

Late Bloomer vs. True Speech Delay

Some late talkers do catch up on their own by age 3 to 4, but research shows that about 20 to 30% of late talkers continue to have language difficulties. There is no reliable way to predict which children will catch up and which will not. Children who understand language well, use gestures, and have good play skills are more likely to catch up. However, waiting to see carries risk. Early evaluation and intervention, even for potential late bloomers, ensures that children who need help get it during the most critical developmental window.

Language Delay vs. Language Disorder: What's the Difference?

A language delay means a child is following the typical path of development but at a slower rate and is expected to catch up. A language disorder (now often called Developmental Language Disorder or DLD) means the pattern of development is different, not just slower, and typically requires ongoing support. A speech-language pathologist can evaluate your child and help distinguish between the two.

Milestone

Milestone Checklists by Age

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Milestone

Month-by-Month Development

Detailed monthly development guides from birth through 24 months.

Guide

When to Call the Doctor

General guide on when to call the pediatrician, visit urgent care, or go to the ER.

Frequently asked questions

Is speech development has plateaued normal?
A temporary plateau in speech development can be normal, especially when a child is focused on developing other skills like walking or problem-solving. However, a prolonged plateau lasting more than 2 to 3 months without any new words, improved understanding, or communication attempts warrants evaluation. True language plateaus may indicate that the child needs support to continue progressing. An SLP can determine whether the plateau is a normal developmental pause or a sign that intervention is needed.
When should I call the doctor about speech development has plateaued?
Your child has not gained any new words or communication skills for more than 3 months Your child's plateau is accompanied by loss of interest in communicating Your child is losing previously acquired words alongside the plateau
When is speech development has plateaued normal?
Your child's speech paused briefly while they focused on learning to walk Your child had a short plateau during illness but is adding words again Your child is still gaining understanding and communication skills even if new words have slowed
What causes speech development has plateaued?
A temporary plateau in speech development can be normal, especially when a child is focused on developing other skills like walking or problem-solving. However, a prolonged plateau lasting more than 2 to 3 months without any new words, improved understanding, or communication attempts warrants evaluation. True language plateaus may indicate that the child needs support to continue progressing. An SLP can determine whether the plateau is a normal developmental pause or a sign that intervention is needed. Common explanations include: Your child's speech paused briefly while they focused on learning to walk. Your child had a short plateau during illness but is adding words again.
What should I mention to my pediatrician about speech development has plateaued?
You should mention speech development has plateaued at your next visit if: Your child has not added new words for 2 to 3 months. Your child's speech progress has slowed significantly compared to earlier gains. Your child is in therapy but progress seems to have stalled.
Is speech development has plateaued normal at 12-18 months?
Brief pauses in word acquisition are common when a child is mastering motor skills like walking. However, pre-linguistic skills like gestures, babbling variety, and understanding should continue to develop even during a word plateau.
Is speech development has plateaued normal at 18-24 months?
Most children experience a vocabulary explosion during this period. If your child's vocabulary has not grown in 2 to 3 months, or if they are stuck well below 50 words by age 2, an evaluation is recommended.
Should I go to the ER for speech development has plateaued?
Seek emergency care if your child has not gained any new words or communication skills for more than 3 months, or if your child's plateau is accompanied by loss of interest in communicating. When in doubt, call your pediatrician's after-hours line for guidance.
Does speech development has plateaued go away on its own?
In many cases, speech development has plateaued resolves on its own, especially when your child's speech paused briefly while they focused on learning to walk. By 4-5 years, persistent plateaus despite intervention may suggest a language disorder rather than a delay. A comprehensive evaluation can help differentiate and guide appropriate support.
ASHAAAPNIH

References

  1. [1]American Speech-Language-Hearing Association. Late Language Emergence. ASHA
  2. [2]American Academy of Pediatrics. Language Development. AAP
  3. [3]National Institute on Deafness and Other Communication Disorders. Speech and Language Milestones. NIH

Doctor Visit Checklist

Bring this checklist to your next pediatrician visit to discuss Speech Development Has Plateaued.

Things to mention

  • Describe when you first noticed speech development has plateaued and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your child has not added new words for 2 to 3 months.
  • Mention if your child's speech progress has slowed significantly compared to earlier gains.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

Observations to share

  • Your child has not added new words for 2 to 3 months
  • Your child's speech progress has slowed significantly compared to earlier gains
  • Your child is in therapy but progress seems to have stalled

Urgent signs to report immediately

  • Your child has not gained any new words or communication skills for more than 3 months
  • Your child's plateau is accompanied by loss of interest in communicating
  • Your child is losing previously acquired words alongside the plateau

My notes

From ismybabyalright.com — free, evidence-based baby health guides

All content follows our editorial policy and is reviewed against published clinical guidelines.

2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members

Related Resources

Ear Infection TriageMilestone ChecklistsEarly Intervention DirectoryDevelopmental ActivitiesBaby Sign Language GuideEmergency ContactsBaby Tracker

Bottom line

Most cases of speech development has plateaued are normal. Talk to your pediatrician if your child has not gained any new words or communication skills for more than 3 months.

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.

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Related Speech Concerns

Speech Progress Is Slow Despite Therapy

Speech and language progress can vary significantly from child to child. Some children make rapid gains once therapy begins, while others progress more gradually. It is important to remember that progress may not always look like new words. Improvements in understanding, attention, gestures, imitation, and social engagement are all meaningful gains. If your child has been in consistent therapy for 3 to 6 months without measurable progress, discuss this with your SLP. The therapy approach, frequency, or diagnosis may need to be reconsidered.

Late Bloomer vs. True Speech Delay

Some late talkers do catch up on their own by age 3 to 4, but research shows that about 20 to 30% of late talkers continue to have language difficulties. There is no reliable way to predict which children will catch up and which will not. Children who understand language well, use gestures, and have good play skills are more likely to catch up. However, waiting to see carries risk. Early evaluation and intervention, even for potential late bloomers, ensures that children who need help get it during the most critical developmental window.

Language Delay vs. Language Disorder: What's the Difference?

A language delay means a child is following the typical path of development but at a slower rate and is expected to catch up. A language disorder (now often called Developmental Language Disorder or DLD) means the pattern of development is different, not just slower, and typically requires ongoing support. A speech-language pathologist can evaluate your child and help distinguish between the two.

Accent vs Speech Disorder in Bilingual Toddlers

When toddlers grow up hearing more than one language, they naturally blend sounds, patterns, and accents from both languages. This is normal and healthy, not a speech disorder. A bilingual child may pronounce some sounds differently than monolingual peers because they are learning the sound systems of two languages simultaneously. True speech disorders affect both languages equally, while accent influence appears only in specific sounds borrowed from one language to another.

Ear Fluid Affecting Baby's Speech Development

Chronic or recurrent middle ear fluid (otitis media with effusion) can temporarily reduce hearing by 15 to 40 decibels, which is like hearing through water. During critical periods of language learning, this muffled hearing can impact speech and language development. If your baby has frequent ear infections or persistent fluid, discuss the potential speech impact with your pediatrician.

Will Ear Tubes Help My Child's Speech?

Ear tubes (tympanostomy tubes) can restore normal hearing by draining persistent fluid from the middle ear. Many children show speech and language improvement within weeks to months after tube placement, particularly if hearing loss from fluid was contributing to their speech delay. However, ear tubes alone may not resolve all speech delays, and some children benefit from speech therapy alongside tube placement.