What is the main cause of autism?

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Top best answers to the question «What is the main cause of autism»

There is no known single cause for autism spectrum disorder, but it is generally accepted that it is caused by abnormalities in brain structure or function. Brain scans show differences in the shape and structure of the brain in children with autism compared to in neurotypical children.

Genetics. Several different genes appear to be involved in autism spectrum disorder. For some children, autism spectrum disorder can be associated with a genetic disorder, such as Rett syndrome or fragile X syndrome. For other children, genetic changes (mutations) may increase the risk of autism spectrum disorder.

We know that there's no one cause of autism. Research suggests that autism develops from a combination of genetic and nongenetic, or environmental, influences. These influences appear to increase the risk that a child will develop autism.

A common question after an autism diagnosis is what is the cause of autism. We know that there's no one cause of autism. Research suggests that autism develops from a combination of genetic and nongenetic, or environmental, influences. These influences appear to increase the risk that a child will develop autism.

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For instance, an infection or contact with chemicals in the environment could cause autism in someone who is susceptible because of genetic mutations. 1 However, someone who is genetically susceptible might not get an ASD even if he or she has the same experiences. 2

We know that there’s no one cause of autism. Research suggests that autism develops from a combination of genetic and nongenetic, or environmental, influences. These influences appear to increase the risk that a child will develop autism. However, it’s important to keep in mind that increased risk is not the same as cause.

There is no known single cause for autism spectrum disorder, but it is generally accepted that it is caused by abnormalities in brain structure or function. Brain scans show differences in the shape and structure of the brain in children with autism compared to in neurotypical children. Researchers do not know the exact cause of autism but are ...

There is strong evidence to suggest that autism can be caused by a variety of physical factors, all of which affect brain development – it is not due to emotional deprivation or the way a person has been brought up. Evidence suggests that autism may be genetic.

Many causes of autism have been proposed, but understanding of the theory of causation of autism and the other autism spectrum disorders (ASD) is incomplete. Research indicates that genetic factors predominate. The heritability of autism, however, is complex, and it is typically unclear which genes are involved. In rare cases, autism is associated with agents that cause birth defects.

Autism spectrum disorder explains several neurodevelopmental disorders whose exact cause is not decoded yet. Recent studies suggest that there is not a single cause, but many. A few suspicious risk factors associated are – Genetic mutations; Immediate family member having autism; Metabolic imbalances; Low birth weight; Child to older parents

The exact cause of ASD is not known. While both genetics and environment likely play a role, its exact cause remains unknown. There is a lot of research being done worldwide to understand how genes and exposure to things in the environment can increase the risk that a child will have ASD. However it's important to keep in mind that increased risk ...

While genetic causes of autism are still being investigated, other studies suggest that certain environmental exposures in the womb may increase the chances of a child developing autism. In addition, certain geographical areas of the country have much higher rates of autism, such as California, Texas, North Carolina and Utah. [4]

Autism spectrum disorder has no single known cause. Given the complexity of the disorder, and the fact that symptoms and severity vary, there are probably many causes. Both genetics and environment may play a role.

Another possible cause for autism is drugs during pregnancy. Antidepressants, primarily selective serotonin reuptake inhibitors and autism have a possible link. This study shows evidence that women who filled a prescription for antidepressants during their 2nd and 3rd trimester had an overwhelming 87% higher chance of birthing a child with autism than women who did not take anything.

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