It is important to note that autism is a complex neurodevelopmental condition, and individuals do not possess "a little" of it; rather, they are autistic or not [1]. The condition exists on a spectrum, meaning autistic people experience a wide range of strengths, challenges, and support needs [1].
Signs of autism in adults
Other signs of autism:
Diagnosing autism spectrum disorder (ASD) can be difficult because there is no medical test, such as a blood test, to diagnose the disorder. Doctors look at the child's developmental history and behavior to make a diagnosis.
If you have low support needs (high-functioning autism), you may have symptoms such as:
Around 90% of autism cases are attributed to genetic factors, meaning autism is highly heritable, with many different genes contributing, rather than a single cause, often interacting with environmental influences during early brain development, though specific environmental factors don't cause it but can increase risk. Twin studies show strong genetic links, with concordance rates between 60-90% in identical twins, and research points to complex interactions of many genes and prenatal/perinatal factors.
The "6-second rule" for autism is a communication strategy where a speaker pauses for about six seconds after asking a question or giving information, giving the autistic person extra time to process it without feeling rushed, which helps reduce anxiety and allows for a more thoughtful response, reducing frustration for both parties. Instead of repeating or rephrasing, which can be confusing, you wait, and if needed, repeat the exact same words after the pause.
Seven key signs of autism spectrum disorder (ASD) often involve challenges with social communication (like avoiding eye contact, not responding to names), restricted/repetitive behaviors (like repetitive movements or strict routines), sensory sensitivities (unusual reactions to sounds, lights, textures), and difficulties with emotional understanding or verbal expression, though signs vary greatly and appear differently across ages. Key indicators include limited gestures, delayed speech, intense focus on specific objects, difficulty with pretend play, and strong distress when routines change.
Asperger's Syndrome (also known as “Autism Spectrum Disorder - without intellectual or language impairment”) may be difficult to diagnose.
There is a more in depth self-assessment with 50 questions for adults which can help to give a better indication of Autism. You can try this for yourself or have several people score the questionnaire individually and compare the results for the same person. Fill out the autism diagnostic questionnaire.
Signs and Symptoms of Borderline Autism
Autistic people may prefer following set routines or rituals (including having or using favourite items), knowing what is going to happen in advance and for rules to be the same for everyone. These characteristics may help you plan and organise and keep calm and happy.
Often children show symptoms of autism within the first year of life. A small number of children with the condition appear to develop as expected in the first year. Then between 18 and 24 months of age, they may lose some skills and develop autism symptoms.
Top 10 Calming Strategies for Autism
changing speech or tone of voice, for example by using less direct phrasing, or being more or less animated. suppressing, reducing or hiding stimming (such as hand flapping or echolalia), or switching to less noticeable stims such as playing with a pen.
The three main symptom areas for Autism Spectrum Disorder (ASD) are persistent difficulties with social communication and interaction, restricted or repetitive patterns of behavior, interests, or activities, and often, different ways of learning, moving, or paying attention, all of which impact daily functioning. These core characteristics vary greatly but center on social connection challenges, rigid routines or repetitive actions, and sensory sensitivities.
The different types of autism include autism spectrum disorder (ASD), autistic disorder (classic autism), Asperger's syndrome, pervasive developmental disorder not otherwise specified (PDD-NOS), childhood disintegrative disorder (CDD), and Rett syndrome.
Physical Symptoms:
Autism in young children
avoiding eye contact. not smiling when you smile at them. getting very upset if they do not like a certain taste, smell or sound. repetitive movements, such as flapping their hands, flicking their fingers or rocking their body.
There is not just one cause of ASD. Many different factors have been identified that may make a child more likely to have ASD, including environmental, biologic, and genetic factors.
find it hard to communicate and interact with other people. find it hard to understand how other people think or feel. find things like bright lights or loud noises overwhelming, stressful or uncomfortable. get anxious or upset about unfamiliar situations and social events.
Chinning is a form of repetitive self-stimulatory behavior (stimming) that you may notice in children or adults with autism. It involves pressing, rubbing, or holding the chin against objects, surfaces, or even hands to gain sensory input or comfort.
Yes—they absolutely do. Scientific research confirms that autistic children form strong, meaningful emotional bonds with their mothers and caregivers, just like any child. The way autistic kids show love might look different, but the connection is real.
When someone is in a state of high anxiety or flooded with sensory input the brain can become overwhelmed and demand a fight, flight, or freeze response from the body. In autistic people this can result in a meltdown (the equivalent of the 'fight' response) which is often mistaken for a temper tantrum.