5 common signs of autism in children: Expert shares signs to look out for as online searches for assessments at all-time high

An analysis of Google Trends search data by the provider of autism parenting resources, Autism Parenting Magazine, revealed that UK search interest for “autism assessment” has hit an all-time high in 2026, up 497% on the average interest volume since tracking began in 2004. This is about six times the average over the recorded period.  

Mark Blakey, CEO of Autism Parenting Magazine, commented: “A diagnosis can prove validating for individuals and open access to the best support. Knowing the signs of autism is key to recognising the possibility of an individual having autism, and spurring them, or parents of children, to seek evaluation from a professional.”  

The experts have shared five common behavioural signs of autism, especially among children, that parents should pay attention to.  

#1 Challenges in social interactions  

Challenges in understanding social cues, limited eye contact, and difficulty engaging with peers, such as a lack of shared interests or difficulties in responding, can be an indicator of needing evaluation.  

#2 Communication barriers  

Children who display signs of a delay in communication can demonstrate this through a range of behaviours in early childhood. If a child has difficulty with spoken language or listener responding, this may indicate that an evaluation is needed. 

#3 Routines or restricted interests  

If a child insists on routines or has difficulty with straying from a routine, or engages in repetitive behaviours or restricted interests, intensely enough that it affects their ability to learn or engage, parents may wish to consider seeking professional advice. 

#4 Sensory sensitivities  

Children may be highly sensitive to certain sensory experiences, such as sounds, textures, or lights, while others may seek these aggressively. Some children may also demonstrate a lack of sense of danger or reaction when experiencing certain sensory input, and these reactions can indicate a need for evaluation. 

#5 Developmental delays  

Some children may experience delays in speech, motor skills, or cognitive development. If a child is not meeting milestones in their development, it is important that parents seek professional guidance. 

Blakey added, “For those who have autism but have yet to be diagnosed, the signs can appear in ways such as social withdrawal or anxiety, in addition to the signs listed.  

“Recognising these signs early in a child’s life helps to ensure a child has access to the right support to promote their growth and development.”