8 Early Signs of Autism in Babies Every Parent Should Know

By Wellness Hub

Last Updated: March 15, 2025

Welcoming a new baby is filled with milestones, including monitoring their development for early signs of autism in babies. Recognizing these signs can lead to timely support, significantly enhancing a child’s growth. At Wellness Hub, we provide resources and expert advice to help parents navigate these early challenges effectively. In this article, we’ll guide you through the eight early signs of autism in infants, equipping you with the knowledge to support your child’s journey from the very beginning

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Understanding Autism in Babies

Autism Spectrum Disorder (ASD) is a developmental condition that appears in early childhood and affects how a person perceives the world and interacts with others. ASD encompasses a broad range of symptoms and skills, which can vary widely from one child to another. Common signs include difficulties with communication, social interactions, and repetitive behaviors.

Early detection of autism is crucial. The sooner autism is identified, the earlier interventions can begin, potentially improving outcomes significantly. Diagnosing autism early allows parents and caregivers to connect with the right resources, therapies, and educational strategies that can support a child’s development effectively.
Also Read: Understanding & Parenting an Autistic Child: Guide & Tips

8 Early Signs of Autism in Babies to Look Out For

1. Lack of Eye Contact

a. How and When Babies Typically Develop Eye Contact:

Eye contact is one of the first significant social milestones for a baby. Typically, infants begin to make eye contact during the first few months of life, often between 6 to 8 weeks old. This early eye contact is a crucial part of bonding and helps babies learn about the world around them.

b. How It Differs in Babies Showing Early Signs of Autism

In babies who may be showing early signs of autism, this developmental milestone might be missed or significantly delayed. These infants may struggle to maintain eye contact, may not look at their caregivers during feeding, or might seem indifferent to attempts at interaction. This early sign can often be the first clue for parents that their child’s developmental trajectory is different.

2. Limited Use of Gestures

a. Importance of Gestures in Early Communication

Gestures are vital for early communication and are usually seen as a precursor to speech. Babies typically start using gestures such as pointing, waving goodbye, and reaching out to be picked up around the age of 9 to 12 months.

b. How Gestures May Be Delayed or Absent in Babies with Autism

Babies with autism might show limited or no use of gestures to communicate. They might not point at objects of interest or might fail to wave goodbye, which are actions that most infants learn as part of their natural development. The absence of these gestures can indicate difficulties with non-verbal communication, a common challenge in autism.

3. Delayed Babbling or Vocalization

a. Overview of Normal Babbling Stages

Babbling is an essential stage in language development, typically starting around 4 to 6 months. It progresses from simple sounds to more complex combinations and is an early indicator of a child’s ability to speak.

b. Signs of Autism Related to Vocal Development in Infants

In the case of autism, babbling may be delayed, less frequent, or might not progress to more complex forms of babbling as expected. Instead of the joyful experimentation with sounds, a baby with autism might have a limited set of sounds or could repeat the same sound without advancing to new combinations.

4. Unusual Reactions to Sensory Stimuli

a. Explanation of Sensory Sensitivities in Autism

Many children with autism experience heightened or reduced responses to sensory input. This can mean overreacting to mild sounds, or being unusually bothered by everyday textures and lights.

b. Examples of How Babies Might React to Sounds, Textures, or Lights

A baby with sensory sensitivities may cry or cover their ears with loud noises that other babies might find curious or exciting. They might also withdraw or act distressed during activities that involve touch, like bath time, or show distress under bright lights. Observing these reactions can provide early indicators of sensory processing issues common among children with autism.

5. Lack of Social Smiling

a. Importance of Smiling as a Social Interaction Milestone

Smiling is a significant early milestone in a baby’s social development, usually emerging around 6 to 8 weeks of age. It’s not just a sign of contentment; it’s a crucial part of the social bonding process, indicating recognition and happiness in response to familiar faces, especially parents.

b. How Smiling Behaviors Might Differ in Babies with Early Signs of Autism

Babies who show early signs of autism might smile less often or may not respond with a smile to their parents’ smiles or other engaging facial expressions. This lack of social smiling is important as it can be one of the first indications of challenges with social interaction and emotional connection.

6. Infrequent Imitation of Social Cues

a. Role of Imitation in Early Learning

Imitation is fundamental to early learning and development. It helps babies understand social cues and learn basic interactions. This mimicry plays a critical role in language development, emotional expression, and social skills.

b. How Babies with Autism Might Struggle with Imitation

Babies with potential autism might not imitate actions and expressions or might be selectively responsive, showing little interest in copying gestures or sounds. This can impact their learning and social interaction, making it a key sign for parents and caregivers to note.

7. Limited Interest in Social Games

a. Examples of Social Games

Social games like peek-a-boo, pat-a-cake, or so-big are not just fun; they are educational. These games help with social bonding, understanding of routine, and early speech patterns.

b. Signs That a Baby Might Not Engage or Find Joy in These Activities

A baby showing early signs of autism might seem indifferent to such games. They may not laugh, smile, or show anticipation during the games, which typically delight infants. This lack of response to interactive play can be a telling sign of different social engagement needs.

8. Passive or Overly Active Behavior

a. Description of the Extremes of Behavioral Activity Seen in Some Babies with Autism

Babies with autism may exhibit behaviors at either end of the activity spectrum. Some may be unusually passive, showing little interest in their surroundings or movements. Others may be overly active, moving constantly, or displaying repetitive motions that seem purposeless.

b. How to Observe and Understand These Behaviors as Potential Signs of Autism

Observing a baby’s reaction to sensory stimuli or their play patterns can provide clues. Passive babies might not explore or react to new objects, while overly active babies might not settle easily and may be fixated on repetitive actions. Recognizing these extremes is crucial for early intervention.

How Wellness Hub Supports Early Autism Detection and Intervention

At Wellness Hub, we support parents and caregivers of children who may be on the autism spectrum by offering practical tools and resources to help them navigate their journey. You can use our free autism screening tests to identify early signs of autism in your child and determine whether to seek a professional evaluation. In addition to screenings, we offer a variety of interactive educational tools and therapy aids, developed with child development experts, to support your child’s learning and growth at every stage.

When you engage with Wellness Hub, you gain access to a community and a wide range of resources that promote early developmental milestones and address autism-specific needs. We deliver practical, research-backed solutions that easily fit into your daily routine, improving learning outcomes and overall quality of life. By joining our community, you receive more than just tools—you become part of a supportive network committed to helping every child reach their full potential..

Conclusion

Recognizing early signs of autism like limited eye contact, fewer gestures, delayed speech, unusual sensory reactions, and less social interaction is crucial for babies. If you notice these signs, consult with healthcare experts promptly. Early intervention can greatly improve your child’s development and quality of life. At Wellness Hub, we provide resources and support to guide you through this journey. Explore our tools and join our community for more guidance at Wellness Hub Resources. Together, we can ensure the best start for your child, helping them thrive every step of the way.

Frequently Asked Questions:

1. What are the first signs of autism in babies?

Learn about the early indicators like lack of eye contact and limited use of gestures. These signs can appear as early as the first few months and are key in identifying developmental differences.

2. How early can autism be detected in infants?

Discover how early signs can be observed and the importance of early detection. Autism can sometimes be detected before a baby reaches 12 months if they exhibit clear developmental delays or behaviors.

3. Why is eye contact important for a baby’s development?

Understand the role of eye contact in social and emotional growth. Eye contact helps babies connect with caregivers and learn from social interactions, which are crucial for their development.

4. What should I do if my baby isn’t babbling?

Find out steps to take if your baby shows delayed speech or vocalization. Early speech therapy and consultation with a pediatric specialist can be beneficial.

5. Can a lack of gestures indicate autism in babies?

Explore how reduced gesturing can be a sign of autism and what it means. If your baby is not using gestures to communicate by 12 months, it may warrant further evaluation.

6. What are typical sensory reactions in babies with autism?

Learn about how babies with autism might react differently to sensory stimuli. They may be unusually sensitive to light, sound, or touch, which can lead to avoidance behaviors or distress.

7. How do I play socially engaging games with my baby?

Get tips on simple, effective games to boost social interaction. Games like peek-a-boo and pat-a-cake can encourage your baby to interact and respond to social cues.

8. What does it mean if my baby is overly active or very passive?

Understand the extremes of behavior and what they might indicate about your child’s development. These behaviors can be signs of how a baby with autism experiences and responds to their environment.

9. Where can I find resources for early autism intervention?

Visit Wellness Hub’s Autism Resources for tools and support tailored to early childhood development. These resources can guide you in seeking the right support and therapies.

10. How can early intervention help my child with autism?

Discover the benefits of early intervention and how it can impact your child’s developmental journey. Engaging in targeted therapies early can significantly improve communication, social skills, and learning outcomes.

About the Author:

Rajini Darugupally

M.Sc., Speech-Language Pathologist (9+ years of experience)

Rajini is a passionate and dedicated Speech-Language Pathologist with over 9+ years of experience, specializing in both developmental speech and language disorders in children and rehabilitation in adults. Driven by a desire to empower each individual to find their voice, Rajini brings a wealth of experience and a warm, genuine approach to therapy. Currently, at Wellness Hub, she thrives in a team environment that values innovation, compassion, and achieving results for their clients.




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