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What are the warning signs of a communication disorder in my young child?

Below are some common developmental warning signs. Please note: this list is simply a general guideline and should not be considered a comprehensive list.


Birth to 6 Months
Developmental or medical problems
Lack of response to sound
Lack of interest in speech
Limited eye contact
Feeding problems
Lack of any vocalizations
Difficulties with attachment
Lack of interest in socializing

6 to 12 Months
Limited sound production, lack of variety or amount
Groping or awkward movements when attempting to make or imitate sounds
Oral-motor problems such as excessive drooling, trouble with solid foods, intolerance to touch in and around the mouth
Lack of interest in sound-making toys, radios, TV, music, voices, etc.
Developmental or medical problems
Lack of response to sound
Lack of interest in speech
Limited eye contact
Feeding problems
Very limited vocalizations
Difficulties with attachment
Lack of interest in socializing

12 to 18 Months
Easily distractible
Does not understand any words or directions
Limited sound production, lack of variety or amount
Groping or awkward movements when attempting to make or imitate sounds
Oral-motor problems such as excessive drooling, trouble with solid foods, intolerance to touch in and around the mouth
Lack of interest in sound-making toys, radios, TV, music, voices, etc.

18 to 24 Months
Communication without words at times
No interest in imitation
Will not play games
No jargon
Grunting and pointing as primary means of communication
Easily distractible
Does not understand any words or directions
Limited sound production, lack of variety or amount
Groping movements when attempting to make or imitate sounds
Oral-motor problems such as excessive drooling, trouble with solid foods, intolerance to touch in and around the mouth
Lack of interest in sounds-making toys, radios, TV, music, voices, etc.

2 to 3 Year Olds
Not combining words
Must be told and retold to carry out simple directions (outside of non-compliance)
Using only nouns
Poor eye contact
No rapid increase in number of words understood and used
Does not tolerate sitting for listening activity, looking at books, etc.

3 to 4 Year Olds
Not speaking in full sentences
Not using “I” to refer to self
Cannot relate experiences, even in simple telegraph sentences