Table of Contents
Print

Which Early Social Behaviours May Indicate Autism in Infants? 

Recognising the early social signs of autism in infants is essential for early intervention, as it allows parents and caregivers to address potential concerns before they impact a child’s overall development. Autism in infants can present itself through delays or differences in social development, particularly in how a child interacts with others. Some social communication delays can be subtle at first, but being aware of these early behaviours can help ensure that a child receives appropriate support. 

In the first few months of life, babies typically begin developing social skills, such as making eye contact, smiling in response to others, and responding to their name. However, in infants with autism, these behaviours may be delayed or absent. Early signs may not always be dramatic but understanding them can help parents take early action and seek professional consultation for further assessment. 

Key Early Social Behaviours of Autism in Infants 

Here are some of the key early social signs of autism that may appear in infants: 

Limited Eye Contact

Eye contact is a critical part of early social interaction, and infants with autism often show reduced eye contact with parents or caregivers. This lack of engagement can make it challenging for them to connect with others and can be an early indicator of autism. 

Delayed or Lack of Response to Name

By six months, most babies start to respond to their name or turn toward familiar voices. Infants with autism may not show this response, which is a key early social sign of autism. They may seem unaware or uninterested in their caregivers’ attempts to engage them. 

Reduced Social Smiling and Gestures

Infants typically begin smiling and using gestures, like pointing or waving, as early as six months. A baby with autism may show fewer smiles or may not use gestures to communicate or share interests, making social connections more difficult. 

Limited Interest in Social Interaction

Babies usually show a natural curiosity and interest in people, often looking at faces or following movements. Infants with autism may appear indifferent to social interactions and may focus more on objects than on people. This can indicate a delay in social development. 

Identifying these early social signs of 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. 

Lucia Alvarez, MSc, author for my patient advice - mypatientadvice.co.uk

Lucia Alvarez, MSc

Author

Lucia Alvarez is a clinical psychologist with a Master’s in Clinical Psychology and extensive experience providing evidence-based therapy and psychological assessment to children, adolescents, and adults. Skilled in CBT, DBT, and other therapeutic interventions, she has worked in hospital, community, and residential care settings. Her expertise includes grief counseling, anxiety management, and resilience-building, with a strong focus on creating safe, supportive environments to improve mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy. 

Dr. Rebecca Fernandez, MBBS, author and a reviewer for my patient advice - mypatientadvice.co.uk

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.