Whether you are "autistic" or "have autism" is a matter of identity and language preference, with many preferring "Autistic" (capital A) to center their identity, while "Autism Spectrum Disorder (ASD)" is the clinical term, though some find "disorder" negative, preferring "Autistic" to describe neurodiversity. Common signs include social communication challenges, intense special interests, sensory sensitivities (lights/sounds), strict routines, and repetitive movements (stimming), but only a professional diagnosis confirms autism, which can be explored through self-reflection, online tools, and clinical evaluation.
Other signs of autism
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.
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.
While many have used and continue to use the term "person with autism" because they find it more polite or respectful, it is widely accepted that people who have received an autism diagnosis prefer to be referred to as an "autistic person."
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.
Not every Autistic person has a formal diagnosis. Many of us self-diagnose or self-identify as Autistic based on our own personal research. Any route to your self-discovery is completely valid.
Changes in the diagnostic criteria and increased screening at wellness visits seem to be the main contributors.
Understanding the 6 stages of an autism meltdown can help parents, caregivers, and educators respond with empathy and support.
Additionally, inherited genetic variations contribute greatly. Research shows that both mothers and fathers can carry autism-related gene variants. Some of these are common variants that increase the risk of autism, while others are rare mutations causing more severe effects.
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.
Children with autism may exhibit rigidity, inflexibility and certain types of repetitive behavior such as: Insistence on following a specific routine. Having difficulty accepting changes in the schedule. A strong preoccupation with a particular interest.
"Looping" in autism refers to getting "stuck" in repetitive mental cycles, replaying thoughts, questions, worries, or phrases endlessly, often triggered by stress, sensory overload, or uncertainty, and linked to challenges with executive function and attention. It's a non-clinical term for perseveration or rumination, where an autistic individual's brain struggles to shift focus from an internal loop, which can be mentally exhausting but sometimes also comforting.
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.
Autism Speaks is dedicated to creating an inclusive world for all individuals with autism throughout their lifespan. We do this through advocacy, services, supports, research and innovation, and advances in care for autistic individuals and their families.
Some autistic people have interests in things that other people may find unusual (or unusual for their age) or very specific. For example, a specific type of engine, an animated TV series or a niche academic interest. Having very intense, uncommon interests is a well-known sign that a child or adult may be autistic.
Meltdowns can be expressed verbally (eg, shouting, growling, or crying), physically (eg, kicking or flapping) or a mixture of both ways. An autistic person will lose control of their behaviour because they are completely overwhelmed and are unable to express themselves another way.
Yelling at an autistic child can cause confusion, fear, and emotional distress that may last far longer than you'd expect. Because autistic kids often process language, tone, and emotions differently, loud voices can be overwhelming—sometimes even physically painful.
Interoception and Autism
This means we might have difficulty accurately perceiving our internal body signals, we may over-feel these signals or simply have difficulty differentiating between body signals and emotional signals, for example, struggling to discern if our discomfort is due to hunger or anxiety.
Researchers are not sure what causes autism, but they believe genetic and environmental factors play a role. Risk factors can include having older parents or a sibling with ASD, genetic or chromosomal conditions like Down syndrome or fragile X syndrome, and very low birth weight.
What NOT to Say to Someone with Autism
We reviewed 36 studies examining maternal diet and autism spectrum disorder (ASD) and found that prenatal vitamin/multivitamin use and adequate intake of folic acid and vitamin D were each associated with lower likelihood of having a child with ASD.
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.
For parents and children, a diagnosis can help you: understand your child's needs and how you can help your child. get advice about support for your child at school. get support for parents and carers of autistic people, such as financial benefits.
Autistic strengths