What is the relationship between autism and genes?

Autism is related to more than 20 thousand genes, which is too wide. Children with autism, the next child is at great risk of autism. My child is autistic. In order to see this disease, we have traveled all over the country, met countless autistic children, and we have also done genetic testing for the whole family. The gene of autism is sometimes recessive, and parents carry it, but parents are not sick and children are sick; Sometimes it is dominant, and parents with autism will have autistic children. However, children who have seen normal genetic tests are also diagnosed with autism.

Some parents they know emigrate for their children. Some people go to countries with better medical care, such as the United States, while others go to countries with better social security, such as New Zealand. But according to their feedback, so far, the disease is a worldwide problem.

But the whole world recognizes that this disease has nothing to do with nurture. Being beaten and autistic is depression, not autism. The scientific name of autism is "pervasive developmental disorder", which is a developmental disorder.