It’s estimated that one in 100 children in the UK is autistic – yet diagnosis for can often be lengthy and complicated.

Swansea University research found it takes, on average, six years longer to diagnose autism in girls than boys.

The study, which involved 400 people, found three-quarters (75%) of boys received a diagnosis before the age of 10 compared to half (50%) of girls.

While the average age of diagnosis was between four and six for boys, in girls it was between 10 and 12 years old, the BBC reported.

Early diagnosis is key to being able to support a child’s development and wellbeing – and as part of this, parents can be aware of the signs to look out for in children so they can begin to seek diagnosis.

While every child is unique, there are common indicators parents can be mindful of, ranging from physical patterns like differences in eye contact and speech, to cognitive preferences like routines and special interests.

Here, Dr Bijal Chheda, consultant psychologist and founder of Nos Curare, a private clinic specialising in neurodiverse care, has shared seven early signs of autism for parents to know.

1. Limited eye contact

“One of the earliest and most noticeable signs of autism in young children is inconsistent eye contact,” the psychologist told HuffPost UK.

You might notice your child avoids directly looking at others’ faces – including yours. They might sometimes glance briefly during interactions, but with minimal reactions.

The expert stressed this “shouldn’t be taken as rudeness or lack of affection”.

“This habit reflects how children with autism tend to process social cues, finding it difficult or even draining to participate in everyday conversations,” she said.

“By limiting eye contact, they allow themselves to focus on processing their surroundings in a way that feels less intimidating........

© HuffPost