A lack of or delays in speech: While many toddlers are late talkers, children on the autism spectrum often have little to no speech by age 3 or 4. They may repeat words but not put words together or have meaningful, two-way conversations.
Limited social interactions: Children with autism have difficulties interacting with other children. They may not make eye contact, respond when called by name, or share interests with others. They prefer playing alone instead of with other children.
Repetitive behaviors and interests: Children with autism often engage in repetitive behaviors like hand flapping, spinning objects, or lining up toys. They may get upset if their routine changes and become fixated on certain topics or activities.
Limited pretend play: Most children this age engage in pretend play where they imitate the actions of others. Children with autism struggle with pretend play and imitation. They have trouble understanding that toys represent other objects.
No pointing at objects to share interest: Children with autism typically do not point at objects to share interest with others. They also do not bring objects to show others.
Sensitivity to sensory input: Children with autism may react strongly to certain sounds, textures, tastes, lights, or tags in clothes. They seek excessive
sameness in their environment. That covers some of the main signs of autism to watch for in children ages 3 to 5. Of course, not all children with autism exhibit all these signs and some behaviors occur on a spectrum. If you notice any of these signs in your child, speaking with your pediatrician is recommended. Early diagnosis and intervention can make a huge difference for children with autism.