While you are rolling or tossing your pizza dough, sometimes you'll have a hole develop. If you keep working the dough, this hole will get larger and larger. The hole develops in an area of the dough that is thinner than the surrounding area. If you do get a hole, it is easy to fix. Just lay your dough down on a flour-dusted surface and pull the edges of the hole back together. Pinch the dough until the hole is closed, and then continue with your rolling or tossing. If you get another, then you may need to make sure that you are rolling to tossing your dough evenly all around.