CATDOLL : Pure white cats have genetic defects

Whether a pure white cat has a genetic defect depends on the individual. The coat color of a pure white cat is controlled by the white gene, which may interact with other genes to lead to some specific physiological or behavioral characteristics.

Some pure white cats may carry genes associated with inner ear degeneration, which may lead to hearing problems or inner ear diseases. In particular, pure white British Shorthair cats have been reported to be more susceptible to anotia syndrome, a genetic disease characterized by unclear, incomplete or remnant ears and hearing loss, but this does not mean that all pure white cats have genetic defects.