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What is autism?

Autism is a difference in how your brain develops that affects how you see and experience the world. It is often called a type of neurodivergence.

Signs of autism in children

Main signs of autism

The main signs of autism include differences in how someone communicates, behaves and reacts compared to those who are not autistic.

Signs of autism might be noticed at a very young age, or not until later in life.

Every autistic person is different and many autistic people will not show all the signs of autism, or signs may not always be obvious.

Autism may also look different in someone who has other conditions, such as ADHD, an eating disorder or learning disability.

Some people learn to adapt so that signs of autism are less noticeable. This is called masking and it can make everyday activities feel exhausting and stressful. Not all autistic people know that they’re masking.

Signs of autism in young children

Communicating with other people

Autistic children may:

Behaviour and play

Autistic children may:

Sensory differences

Autistic children may:

Recognising signs of autism in girls

It can be harder to see some of the signs of autism in girls because of masking (not showing the signs). Autistic girls may be more likely to:

Signs of autism in older children and young people

Older autistic children and young people will show many of the same signs of autism as younger children.

They may also:

Signs of autism in adults

Signs of autism in adults

If you are an autistic adult, signs may be similar to the signs of autism in children.

You may have learned to adapt so that signs of autism are not always noticeable.

This is called masking and can make everyday activities and social interactions feel exhausting and stressful. 

You may:

If you’re autistic you may also have:

It may be difficult to see signs of autism if an adult has other conditions, such as a learning disabilityanxietydepression, an eating disorder, or ADHD.

Recognising signs of autism in women

It can be harder to see signs of autism in women due to masking (not showing the signs). If you’re an autistic woman you may be more likely to:

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