It's just that the belly is white, but it's not good if the black dog's tail is white and its claws are white. From a superstitious point of view, it is called "filial dog". It's unlucky, and it's not good for our family. There is a white hair in the middle of the head, commonly known as a decapitated dog, which is said to bring bad luck and will be broken in the future. In fact, it is also superstition, and there are unbelievers! Never abandon a dog for such a statement, because no matter what kind of dog is loyal to its owner!