Generally speaking, the embarrassing period of male dogs will be earlier and longer, because male dogs change a lot. When the hair first begins to moult, the hair appears shorter and grows slower, a bit like a Labrador. The mouth begins to become pointed and long, the forehead is not obvious, and the chest is very narrow. Afterwards, the skull will gradually begin to become wider, the hair will continue to grow, and the bones will begin to become wider and thicker.