What causes Autism is something every doctor hears when they tell a parent their child is Autistic. There is not one definite answer to this question. There are several thoughts on what causes Autism. Some of the causes of Autism are thought to be genetic. Doctors think there are several genes that cause Autism, but have yet to locate them. They now feel that some people are born with the predisposition to be Autistic. Then they have some type of environmental trigger and they become Autistic.
Autism is more common in boys that girls. Some studies show a connection to environmental factors and Autism. They think that the pollution and toxins in the air can contribute to a child having Autism. Studies have shown small towns with high cases of Autism. The towns had one thing in common, a high pollution source. Usually the source is a factory of some sort that release a lot of toxins, and chemicals into the air.
A majority of people believe Autism was caused by the Mercury, or Thimersal in vaccinations. This was due to the fact that Autism was first diagnosed about the same time as vaccinations were given.
There has been a lot of studies an research about vaccines causing a child to become Autistic. So far there has been no evidence to suggest the connection between vaccinating your child and Autism. There could be more risks from not having the vaccinations.
Some studies have shown children being exposed to high levels of Mercury were more likely to have Autism. This was a fear with the vaccinations, but the majority of shots these days do not contain any mercury or Thimersal. If they do contain Thimersal it is in very trace amounts. High levels of Mercury can be contributed to eating a lot of fish, and industrial emissions. Researchers think there could be a connection to pregnant women being exposed to Mercury and their children having Autism. There are new studies testing pregnant women to see how much Mercury is in their systems and testing the babies at birth. They can then monitor the babies with high Mercury levels and see if they have any problems later on.
There are theories that Autism is caused from an underlying health issue. Certain diseases make a child more likely to develop Autism. Some of these diseases include Fragile X syndrome, and congenital Rubella. Others believe Autism is caused by a metabolic imbalance.
It used to be thought that Autism was caused from an early emotional trauma. They also thought bad parenting was to blame. Doctors tried to blame mothers for not giving their children enough attention and love. These theories have been found untrue. Much more research is needed to identify the true cause or causes of Autism. Until a definite answer is found no one will know what cause a child to be Autistic. These theories are all just that, theories. Someday hopefully doctors will understand what causes a child to be Autistic, and they can work on a way to prevent, or cure it.