Prenatal exposure to air pollution or certain pesticides. Maternal obesity, diabetes, or immune system disorders. Extreme prematurity or very low birth weight. Any birth difficulty leading to periods of oxygen deprivation to the baby's brain.
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.
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.
Other signs of autism
Genetics. Several genes seem to be involved in autism spectrum disorder. For some children, autism spectrum disorder can be related to a genetic condition, such as Rett syndrome or fragile X syndrome. For other children, genetic changes, also known as mutations, may raise the risk of autism spectrum disorder.
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.
Yes, a majority of autism cases are linked to inherited genetic mutations that run in families. Can You Develop Autism? Autism takes root during fetal development. No evidence suggests you can develop autism later in life.
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.
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.
M-CHAT-R. The Modified Checklist for Autism in Toddlers, Revised (M-CHAT-R) is a screening tool that will ask a series of 20 questions about your child's behavior. It's intended for toddlers between 16 and 30 months of age. The results will let you know if a further evaluation may be needed.
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.
Donald Triplett, autism's 'Case 1,' dies at 89. Triplett gained media attention for his autism later in life, and he became the face of the effort to research the lives of older adults with autism.
Autistic people can live a full life
Like everyone, autistic people have things they're good at as well as things they struggle with. Being autistic does not mean you can never make friends, have relationships or get a job. But you might need extra help with these things.
While autism is typically not diagnosed before the age of 2 (and often much later), it can sometimes be detected earlier. A 2022 study found that a routine second-trimester ultrasound could detect early signs of autism during pregnancy,18 including anomalies in the heart, head, and kidneys.
Top 10 Calming Strategies for Autism
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.
In general, people who have an active lifestyle are much more emotionally resilient and focused. There also seems to be some evidence that physical exercise helps people with depression and ADHD, which are commonly co-occurring conditions with autism.
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.
Physical Symptoms:
Individuals with autism can indeed live normal, fulfilling lives. With the right support, early intervention, and inclusive environments, they can thrive in various aspects of life.
Yes, a child can have autism and still talk normally. Autism Spectrum Disorder (ASD) affects social communication, but not all children with autism have speech delays. Some may develop language skills on time or even earlier than their peers.
Experts haven't found a single cause of autism. It's likely a combination of genetics and certain things related to pregnancy, labor and delivery. You might see these things described as “environmental factors” or “prenatal events.” These factors all interact to lead to the brain differences we see in autism.
So, ADHD and ASD aren't the same condition, but — because they have so many similarities — it's easy to confuse them. After all, it's not like there's a specific spot on the brain where ASD stops and ADHD begins.
A child with mild autism can ultimately lead a very “normal”, productive, and independent life. With early intervention, a child with autism can learn the skills needed for successful navigation in communication and social interaction with peers in school.