Are there any thal patients or parents with knowledge of ASD? In simple terms it is a tiny hole in the heart which is common and treatable. My daughter was diagnosed with it when she was younger, she is 3, and we have been watching it since. It usually closes on its own but sometimes surgery is required. We have gotten 2 opinions due to her thal, 1 yes and 1 no for surgery. Just looking for some input, thanks