14 Early Signs of Autism

2. Won’t Respond to Their Name

You may notice that your child does not turn or look at you when you call their name. This can stand out by around 9 months of age. Most children respond to their name often, even when they are busy with a toy or activity.

At first, you might think your child did not hear you. However, they may react to other sounds, such as a favorite song, a door opening, or a loud noise. This can show that their hearing works, but they do not connect their name with social attention. Some children with autism do not view their name as a cue for interaction.

You may call several times and still receive no eye contact or response. This behavior often appears with other social differences. Your child may avoid eye contact, not point to share interest, or seem focused on objects instead of people. All children ignore their names at times, but concern increases when this pattern continues for months. An evaluation by a pediatrician or developmental specialist can help assess social communication skills and rule out hearing or developmental disorders.

3. Does Not Point at Objects

You use pointing to share what you see and feel. Most children show interest, ask for help, or bring attention to something new. This gesture helps your child connect with you during everyday moments and build early communication skills.

By around 12 to 18 months, many toddlers point at objects they want or find interesting. They may point to a toy on a shelf or a dog across the street. This action shows they want to share the experience with you. If your child does not point by this age, it can be an early sign of autism. Some children may take your hand and lead you to an object instead of pointing.

Pointing is part of shared attention, which is an early social communication skill. Your child shows understanding that you can see and respond to the same object. When this skill does not develop, it can signal challenges in social development. A developmental screening by a pediatrician or specialist can help assess communication milestones and identify possible delays.

4. Lack of Smiles

You may notice that your baby does not smile back at you. Most babies begin to smile at people by around 2 months of age. They often smile when they see your face or hear your voice. These early smiles help build connection and support healthy social development.

If your child rarely smiles during social moments, this can be an early sign of autism. You may smile, talk, or play, yet your child does not respond with a smile. A social smile happens during interaction, such as during eye contact or a simple game. This type of smile is different from a random smile during sleep.

You may also notice fewer warm facial expressions. Your child might not look excited when you return to the room and may seem serious most of the time. Children develop at different speeds, but an evaluation by a pediatrician or developmental specialist can help determine if there is a delay in social or emotional development.

5. Play and Share with Others

You may notice differences in how your child plays with you and with other children. Many young children enjoy simple back-and-forth games. They smile, copy facial expressions, or bring you toys to share your interest. These actions help build social and communication skills.

If your child rarely shares toys, avoids group play, or prefers to play alone most of the time, this can be an early sign of autism. Some children do not want to show something they like. Others may not bring objects to share excitement. By age 3 to 4, many children take part in pretend play, such as pretending to cook, drive a car, or be a superhero.

Limited pretend play can signal a delay in social development. You might also see little interest in other children. Your child may not respond when others feel sad or hurt and may not join games when invited. Some children line up toys or repeat the same routine each day.

6. Notice If You Hurt Yourself

You may notice that your child hurts themselves on purpose or repeats actions that cause pain. This can include head banging, biting hands, scratching skin, or hitting the body. These behaviors can appear in early childhood and may happen during certain situations or many times a week.

Some children with autism use self-injury as a way to cope with stress. Loud sounds, bright lights, or sudden changes in routine can feel overwhelming. Your child may also struggle to express needs such as hunger, fear, or discomfort.

The behavior often signals distress rather than a desire for attention. It may happen during loud or busy settings, after changes in routine, or following social challenges. Repeated self-injury, especially with social and communication differences, can be linked to autism spectrum disorder.

7. No Back and Forth

You may notice that your child does not take part in simple back-and-forth exchanges. This can appear in small daily moments. Your child may not smile back when you smile or respond when you call their name. These early exchanges help build social and communication skills.

Young children often copy sounds, facial expressions, and gestures. They babble, pause, and then babble again after you respond. If your child rarely joins this “serve and return” pattern, it can be an early sign of autism. During play, your child may prefer to play alone and not look to you for shared enjoyment or attention.

As language develops, back-and-forth includes simple conversations. A child with autism spectrum disorder may talk at you instead of with you. They may not answer questions, stay on topic, or notice when it is your turn to speak.

8. Lack of Language Acquisition

You may notice delays in how your child learns to speak. Most children say single words around 12 months and simple two-word phrases by age 2. If your child does not babble, say words, or try to copy sounds, this can signal a delay in language development.

Some children with autism do not respond to their name by 9 months. They may not use gestures such as pointing, waving, or reaching to communicate. Instead of asking for help with words, your child may pull your hand toward an object without making eye contact.

You might hear repeated words or phrases that do not fit the situation. This is called echolalia and can replace back-and-forth conversation. Some children understand more than they can say but struggle to form clear sentences.

9. Difficulty with ‘Pretend’ Games

You may notice that your child does not join pretend play like other children the same age. Many young children enjoy acting like a parent, teacher, doctor, or superhero. They may use a box as a car or pretend to feed a doll. These games support imagination and social growth.

If your child has autism, you may see little interest in these activities. Your child may line up toys, spin wheels, or focus on one part of a toy instead of creating a story. This pattern connects to differences in social communication and flexible thinking skills.

Pretend play involves imagination and shared ideas. Your child needs to understand another person’s point of view to play “house” or “store.” Signs can include little interest in make-believe games, using toys the same way every time, not pretending objects are something else, and preferring to play alone.

10. Mood Swings

You may notice quick and strong changes in your child’s mood. Your child might shift from calm to upset within minutes, sometimes without a clear reason. These reactions can seem more intense than what is typical for their age and may happen more often than expected.

Many children with autism spectrum disorder feel emotions deeply. Small changes in routine, loud sounds, or bright lights can overwhelm them. You may see crying, yelling, or withdrawal. Some children struggle to explain feelings such as hunger, pain, frustration, or anxiety, which can lead to sudden mood swings.

Mood shifts can also connect to sensory sensitivities, sleep problems, or digestive discomfort. Certain textures, smells, or noises may cause strong distress, and poor sleep can increase irritability.

11. Theory of Mind

Theory of mind is your ability to understand that other people have their own thoughts, feelings, and beliefs. This skill helps you predict how someone might react in a situation. Most children begin to develop a theory of mind during early childhood through play and social interaction.

If your child has delays in this area, they may struggle to see another person’s point of view. Your child might assume others think and feel the same way they do. You may notice difficulty understanding jokes, sarcasm, or pretend games. Your child may continue talking about a favorite topic even when others seem bored or upset.

During play, your child may find it hard to imagine what a character thinks or feels. Social rules can feel confusing, even if your child wants friends. Delays in theory of mind are common in autism spectrum disorder.

12. Repetitive Tasks

You may notice your child repeating the same actions again and again. Your child might stack blocks in the same order or line up toys instead of using them in different ways. If you move an item, your child may become upset. These patterns can stand out during daily play.

Repetition can also appear in routines. Your child may insist on eating the same foods, wearing the same clothes, or following the same bedtime steps. Small changes can lead to stress or strong reactions. Some children repeat body movements such as hand flapping, rocking back and forth, spinning in circles, or repeating words and phrases.

These behaviors can help your child feel calm or in control during excitement, stress, or sensory overload. You may also see intense focus on one part of a toy, such as the wheels of a car. In autism spectrum disorder, repetitive behaviors often occur frequently and may affect learning, play, and social interaction.

13. Routine

You may notice that your child depends heavily on daily routines. Your child may want to eat the same foods, follow the same route to school, or complete activities in a set order. These patterns can provide comfort and predictability in everyday life.

Small changes can cause strong reactions. Your child may become upset if furniture is moved, bedtime shifts, or a different route is taken home. Even minor plan changes can lead to stress, crying, or anger. Children who rely on routine often feel safer when life feels structured and predictable.

You may also see strict patterns in play and daily habits. Signs can include a strong need for set schedules, distress over small changes, repeating the same habits each day, and insisting on specific rituals before meals or bedtime. In autism spectrum disorder, this need for sameness can affect school, family plans, and social activities.

14. Obsessive Interest

You may notice that your child develops a very strong interest in one specific topic. This interest can seem deeper or more intense than what you see in other children the same age. It may stand out because of how much time and energy your child gives to it.

Your child might talk about the same subject every day, such as trains, numbers, weather, maps, or a favorite character. Your child may memorize detailed facts and repeat them often. Shifting the conversation to another topic may feel difficult, even when others show little interest.

You may also see this pattern in play and daily behavior. Signs can include talking about one topic repeatedly, becoming upset when interrupted, collecting large amounts of related items, and preferring to engage in the interest alone. In autism spectrum disorder, intense interests can shape social interaction and daily routines.