White Persian cats, like other white-coated felines, have a higher likelihood of being born deaf due to genetic factors associated with their coat color. This article delves into the correlation between color and deafness, the genetic factors contributing to this condition, and the statistics on hearing capabilities in white Persian cats with different eye colors. Additionally, it provides hands-on solutions and recommendations for pet owners to ensure the auditory well-being of their white Persian cats.
What is the Correlation between Color and Deafness in White Persian Cats?

The dominant white gene (W) is the primary genetic factor responsible for the white coat color in Persian cats. This gene not only suppresses the expression of pigment, leading to the white coat, but it also affects the development of the inner ear, resulting in a higher incidence of deafness in white cats.
How Do Genetic Factors Contribute to Deafness in White Persian Cats?
The dominant white gene (W) is the primary culprit behind the deafness in white Persian cats. This gene suppresses the melanocytes, which are responsible for the production of pigment, in the inner ear. This suppression leads to the degeneration of the auditory apparatus, ultimately resulting in deafness.
What is the Hearing Capability of White Persian Cats with Blue Eyes?
White Persian cats with blue eyes are at a higher risk of being deaf. Studies have shown that:
– 65 to 85% of white cats with two blue eyes are deaf.
– 40% of white cats with one blue eye (odd-eyed cats) are deaf, typically in the ear on the side of the blue eye.
– Not all white cats with blue eyes are deaf, but the likelihood is significantly higher compared to white cats with non-blue eyes.
What are the Statistics on Deafness in White Persian Cats?
- 17 to 22% of white cats without blue eyes are born deaf.
- 40% of white cats with one blue eye are deaf.
- 65 to 85% of white cats with two blue eyes are deaf.
- Long-haired white cats are more likely to be bilaterally deaf compared to short-haired white cats.
How Can You Test the Hearing of White Persian Cats?
To ensure the auditory well-being of white Persian cats, it is recommended to conduct hearing tests, particularly for those with blue eyes. The most common method is the Brainstem Auditory Evoked Response (BAER) test, which measures the brain’s response to auditory stimuli.
Hands-on Solutions and Recommendations
- BAER Testing: This is the primary method for diagnosing deafness in cats. It is non-invasive and can be performed by a veterinarian.
- Breeding Practices: It is advisable not to breed deaf white cats to prevent passing on the genetic defect.
- Observation: Owners should be aware of signs of deafness, such as lack of response to sounds, and consult a veterinarian if they suspect their cat is deaf.
References:
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Congenital Sensorineural Deafness in Cats – Wikipedia
https://en.wikipedia.org/wiki/Congenital_sensorineural_deafness_in_cats -
The Odds of Deafness in White Cats – Catwatch Newsletter
https://www.catwatchnewsletter.com/health/disease/the-odds-of-deafness-in-white-cats/ -
Inherited Deafness in White Cats – International Cat Care
https://icatcare.org/advice/inherited-deafness-in-white-cats/