When a child has ADHD, the parent or guardian of the child can sometimes blame thyself for the problem. They saddle with the guilt for making their child's life miserable, as if they bought on, or are making the symptoms of ADHD worse with their actions.
Parenting, good or bad does not cause or prevent ADHD. A home where tranquility & peace reign, does not guarantee the absence of ADHD. On the other hand, a neglected and troubled home is not necessarily the reason for one to get ADHD. Although a stable home can help alleviate the symptoms of some children with ADHD, it will not cure or reverse the problem. The same as, a problematic home can possibly worsen the symptoms of a child with ADHD, but will definitely not bring it on in the first place.
There is yet another factor that could contribute to the guilt of a parent of a child with ADHD. In the past many experts believed that the way of eating has an impact on a child with ADHD. It was said that a diet with a lot of sugar and food coloring can bring about the symptoms of ADHD. As a mother of a child with ADHD I used to deprive my child of all the goodies, because I was confident that without all the sweet stuff, my child would not suffer as much of the ADHD. It took quite a short while for me to realize that instead of making matters better, just the opposite occurred. If the hardships of the ADHD was not sufficient, I just added more trouble by increasing my child of something all his friends were adoring. When a child is hyper, albeit he does not have ADHD, sugar and sweets can cause him to be more aggressive. But that is not the case with ADHD.
If your child has been diagnosed with ADHD, do not shoulder the responsibility upon yourself. You are not at fault. It's important to learn as much about it as you can, and do everything you can to help your child. That way you will feel blameless.