1. Difficult to train: Although the four-eyed dog is smart, it is more difficult than the ordinary dog in the training process because of its unique genetic genes. The difficulty of training is greatly increased, which not only consumes a lot of time and energy of the owner, but also may not achieve good results.

2. Difficult to take care of: Native dogs and four-eyed dogs need more considerate care than other dogs, because their skin is at higher risk of pollution and prone to skin diseases. At the same time, the eye structure of four-eyed dogs is also special, which is prone to eye diseases and needs frequent cleaning and inspection.

3. Easy to get sick: Native dogs and four-eyed dogs are prone to some canine diseases due to some inevitable physiological reasons. For example, they are prone to digestive system problems, bacterial infections and respiratory diseases. The cost of treating these diseases will also increase greatly.

4. Very special: The four-eyed dog looks very special, which may attract the curious eyes of strangers and may even be rejected or discriminated against. This also brings some pressure and inconvenience to the four-eyed dog and its owner.

Therefore, although the unique appearance of the four-eyed dog is attractive, there are still many difficulties and risks for many experienced pet owners to raise this kind of dog. If you are not very confident and like it very much, beginners had better not choose such a difficult dog.