What Developmental Milestones Might Be Delayed in Infants with Autism? 

Developmental delays in autism are often one of the first indicators that a child may need additional support. While every infant develops at their own pace, certain milestones might be delayed in infants with autism, particularly in areas like social interaction, communication, and motor skills. Recognising these delays early on can lead to timely intervention and help ensure that the child receives the right support for their early development. 

Autism in infants can present itself through a variety of delayed milestones, some of which may be subtle at first. By paying attention to the typical developmental timeline and comparing it with your child’s progress, you can more easily identify potential concerns and seek professional evaluation. 

Common Developmental Delays in Autism 

Parents may notice the following delayed milestones in infants with autism: 

Social Engagement Delays

By six months, most babies begin to show interest in social interaction, such as making eye contact, smiling in response to others, and engaging in simple back-and-forth interactions. Infants with autism may show less interest in socialising or may not engage in these typical behaviours. This could be one of the first developmental delays in autism. 

Speech and Language Delays

Language development in infants is usually noticeable by the first year, with many babies babbling and starting to say simple words. Infants with autism might show delayed milestones in speech, with little to no babbling or difficulty making sounds. Delays in using words and gestures to communicate are also common in this stage. 

Motor Skills Delays

Although less common than social and language delays, some infants with autism may also experience developmental delays in motor skills. This can include delayed crawling, walking, or difficulty with hand-eye coordination. These delays can be particularly noticeable if the baby shows little interest in manipulating objects or exploring their environment. 

Limited Eye Contact and Facial Expression

One of the first signs of autism in infants is often a lack of eye contact or minimal facial expressions. While most infants engage with their caregivers through smiles, eye contact, and other social cues, those with autism may appear indifferent to these interactions, which could signal a delay in social development. 

Identifying these developmental delays in autism can help you take proactive steps in seeking guidance and support. For tailored advice and expert guidance, visit providers like Autism Detect for personalised consultations. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Early Signs & Symptoms of Autism.