Early Signs of Autism in Toddlers: When to Be Concerned About Speech and Social Development
Early Signs of Autism in Toddlers
Understanding the early signs of autism can help parents seek support sooner. These signs can fall into three main categories:
Social Communication Differences
Early social communication challenges are often the first noticeable signs of autism.
A toddler may:
Avoid or limit eye contact
Not respond consistently to their name
Rarely point to show interest
Use few gestures such as waving, clapping, or nodding
Show limited interest in engaging with caregivers
Not imitate facial expressions or actions
Prefer playing alone most of the time
Not engage in pretend play (feeding a doll, pretending to talk on a phone)
2. Speech and Language Delays
Speech delay is a common reason families seek help.
Possible red flags include:
Limited babbling by 9–12 months
Delayed first words
Limited back-and-forth vocal play
Not combining words by age two
Loss of previously acquired words (language regression)
3. Repetitive Behaviors and Sensory Differences
Autism also includes restricted or repetitive behaviors and sensory processing differences.
These can include:
Arm flapping, rocking, or unusual body movements
Strong attachment to specific objects
Extreme distress when a preferred item is removed
Intense focus on particular interests
Overreaction to sounds, textures, smells, or lights
Under reaction to pain or loud sounds
When Should Parents Be Concerned?
Not every child who shows one or two of these behaviors has autism. Many toddlers develop skills at different rates.
If you notice multiple signs or feel something is different, trust your instincts.
Why Early Intervention Matters
Early intervention for autism can dramatically improve:
Expressive and receptive language
Social engagement
Play skills
Emotional regulation
Functional communication
The earlier support begins, the more opportunity the brain has to build strong communication pathways.
Speech-Language Pathologists play a critical role in helping children develop the foundational skills needed for connection and learning.
Other Resources:Autism Navigator
Autism Speaks
The American Speech and Hearing Association