Blue and white folded-eared cats cannot be raised. The reason why blue and white folded-eared cats have folded ears is because they carry congenital genetic diseases. As blue-and-white folded-eared cats grow up, they may develop arthritis. Once they develop the disease, they will become very serious. It is painful and cannot be treated. Severe cases of blue and white folded-eared cats can lead to paralysis, so it is not recommended to raise blue and white folded-eared cats. In addition, the gene for folded ears is very strong and will be 100% passed on to the next generation.