There are a number of reasons cats lose their hearing. They could be born deaf (known as congenital deafness), or develop hearing loss during old age or after physical illness. With a few adjustments to their living space and routine, deaf cats can still lead a very happy and healthy life.
Most healthy cats have much better hearing than their owners, so if your cat is unable to hear sounds that you can easily hear, he or she may be suffering from hearing loss. Common signs of deafness include:
There are a number of reasons a cat might become deaf. Your vet will help you determine the likely cause and appropriate treatment.
Cats with a white coat and blue eyes have a higher risk of being born deaf. This is particularly true of breeds such as Persians, Scottish Folds, Ragdolls, Cornish Rex, Devon Rex, Oriental shorthair, Turkish angora, Maine Coone and Manx.
Just as many humans lose their hearing as they age, so do cats. This is due to the delicate structures of the inner ear losing their sensitivity to vibration. Age-related hearing may develop very gradually, and can sometimes take longer to diagnose.
A number of underlying physical illnesses can cause hearing loss, usually because the condition is somehow preventing sound waves from reaching the nerves in the ear. This includes:
Some medications, such as antiseptics and chemotherapy drugs can affect your cat’s hearing. Medications that remove excess fluid from the body can also affect hearing, as can heavy metals such as arsenic, lead or mercury.
A simple test to determine if your cat is deaf is to loudly clap your hands while he or she is facing away from you. If there is no response, it is probably time to see the vet.
Your vet will ask you for a thorough history of your cat's health, onset of symptoms, and possible incidents that might have preceded this condition. They will perform a thorough physical examination, including examining your cat's ear canal with the use of an otoscope. In some situations sedation or an anaesthetic will be required to examine the ear canal thoroughly, especially if it is painful or your cat is a bit wriggly. There may also be the need for further investigation via the use of radiographs or MRI to help assess the middle and inner ear.
If you think your cat may be deaf, seek prompt advice from your vet. Unfortunately, congenital deafness is irreversible. However if the hearing loss is caused by an inflammation of the outer, middle, or inner ear, or a type of cancer, your cat’s hearing may be restored after successful treatment of the underlying condition.
It is quite easy to accommodate the needs of cats with congenital deafness, as they will automatically use their other senses to take in information and communicate. However, if your cat has only recently become deaf or is suffering gradual and partial hearing loss, it can take a little longer for both you and them to adjust to their condition.
If your cat has become profoundly deaf, the outside world can be very dangerous. He or she won’t be able to hear noises such as other pets including dogs, motor vehicles and other moving objects and will be at greater risk of injury. The safest option is to train your cat to stay indoors. This may require some adjustment to routine, such as retraining your cat to use kitty litter (if he or she usually goes outside). You might also consider creating a contained cat run in your yard, so your cat still gets to go outside.
For deaf cats, you will need to replace aural cues (such as using your voice to call them) with visual cues. For example, if you would like your cat to come to you, crouch down and motion with your hand. Or, if it is time for dinner, create a signal the cat will learn to understand, like flicking the porch light a few times quickly. Cats are quick learners and will readily respond to hand signals, laser pointers or household lights.
Deaf cats startle easily. To avoid them becoming frightened, always approach your cat from the front where he or she can see you coming.
Deaf cats will rely heavily on their other senses to take in information. To get your cat’s attention, try stomping firmly on the floor, as this will be felt as a vibration. You can then try a variety of visual cues to communicate.
Deaf cats, like all cats, love to play. Continue to play hunting and chasing games as you would with a hearing cat. It will keep him or her active and also strengthen the bond between you both.