When the whole eggshell is heated in the microwave oven, the egg will explode in the oven due to pressure. It's dangerous, so the eggs must be broken and stirred evenly before they are put into the furnace.

Of course, a complete egg will explode, because the microwave oven is based on the microwave hitting the food, which makes the molecules of the food vibrate to generate heat, and the eggs that cook the food are no exception, but the eggs are complete. When the microwave penetrates the egg, the contents will get hotter and hotter, and it will certainly explode to a certain extent.