Cat Hair Loss – Cat Alopecia

Cat hair loss, also known as cat alopecia is a condition in which your cat loses more hair than it is normal. Actally, cat alopecia is quite a common problem for cats. Because of that, if you have a pet cat, you might be interested in reading this article. Cat hair loss (cat alopecia) can be partial or complete. It can also have varied or symmetrical patterns. When it comes to the skin area of hair loss, it can be normal, but, it can also have redness, bumps, scabs and skin loss. But, how does it comes to this? There are many reasons and causes for cat hair loss (cat alopecia). To find out more about about it, keep reading.


Stress / Excessive Grooming

Cats can be under a stress. And, when cats are stressed out, they tend to groom themselves more excessively. With that comes cat hair loss, in other words, cat alopecia. If there has been some major changes in your cats life, you can assume that the stress is the cause of alopecia. Some stressors for your cat might be: changed environment, loss of a friend, a new pet in your home, following illness or recent surgery and many more.

If you think your cat is under a stess it is time to change some things in your home in order to reduce your cats stress levels. Give your cat some privacy, prepare a lot of interactive toys, avaken your cats hunting nature.  Basically, do anything you need to make your cat happy. Also, when you see your cat grooming itself exvessively, you should try and interupt him/her. Excessive grooming can continue even after the stress is gone because it can grow into a habbit. Excessive grooming habits are also known as Psychogenetic Dermatitis.


Yes. Cats and other pets can have allergies too. They can have all sorts of allergies. From food allergies to pollen, plants and parfumes. And, just like humans, cats will feel itchy too. Because of that, they will start to groom and scratch themselves excessively, which can result in loss of a hair. If the reason for your cats alopecia is allergy, you will also see an itchy, inflamed skin. Skin can also be dry and covered with blisters. Determinating what is the thing your cat is allergic to is hard. Because of that, it would be best if you contacted your veterinarian and ask for advice. If the reason for your cats hair loss (cat alopecia) is food allergy, you can try some Hypoallergenic Cat Food. This food could help your cats problem.


Ringworm is a fungal infection that could cause cat hair loss (cat alopecia). In adult cats, this infection leads to circular lesions on the skin and brittle hair that breaks off in patches. On the other hands, kittens will have reddish areas around the face, ears and paw pads. Also, white or gray crust may appear. Cats usually get this fungal infection when they are in contact with infected animal. Because of that, if you suspect that your cat has ringworm, keep your other pets away from your cat untill your cat is cured. Nevertheless, you should deffinitely visit a veterinarian. He/she will take a swab of your cats skin and determine if it’s really ringworm or something else. If it is, you will get some special shampoos and/or medications to treat your feline.


Another possible reasson for your cats hair loss (cat alopecia) are fleas. Fleas usually dont cause hair loss, but with sensitive cats, that is not the case. When it comes to fleas, your cat will also start grooming and scratching excessively. But, this is not the only reason for hair loss. Fleas saliva cause it as well. You  can easily get rid of fleas by using special shampoos and treatments. Also, if you use these shampoos and threaatments regularly, you can even prevent flea infestations.

Genetic Conditions

Genetic Conditions as a cause of cat hair loss (cat alopecia) is also posible. Unfortunately, if this is the case with your cat, there is nothing you can do about it. It is something your cat inheritated. But, dont worry, this condition is sporadic and there is a big chance of hair growing back in a few weeks.

Thyroid Disease – Hyperthyroidism

Thyroid Disease is a condition in which a cat (or some other animal) produces too much, or too little of the Thyroid hormone. The one that causes hair loss aka. cat alopecia is Hyperthyroidism (producing too much of this hormone). Hyperthyroidism also causes weight loss, a curb in grooming, excessive thirst and urination and insatiable appetite. If you suspect that your cat has this disease, call your veterinarian. He/she will be able to confirm it by taking a blood test. You will then get required medications and/or required therapy. But, rarely, medications are not enough and the only thing left for your cat is surgery.


Cancer can also be a reason for your cats hair loss. But, dont worry, if there is no other sympthom besides hair loss, it’s deffinitely not cancer!

Mercury Poisoning

Mercury poisoning causes hair loss in humans. But, recent researches show that mercury poisoning can cause hair los sin cats too. And, this could be the case if your cat eats too much of tuna fish. If that is the case, you should reduce the quantity of tuna in your cats meals and everything should be fine.

Demodectic and Notoedric Mange

Mange mites are a type of parasites that crawn under the skin. They are one of the most common types of parasites in cats. They cause itching and hair loss. You can see the traces of hair loss in the area of ears, neck, eyelids and other facial and upper body parts.


Finaly, one cause you dont have to worry about. It is cat pregnancy. Because of the changes in hormones, mother cat could have some hair loss. This is only naturall. Her hair will grow back after the birth.

See also: Pregnant Cat Labor Signs


We can see that there are plenty of things that can cause cat hair loss aka. cat alopecia. Because of that, treatment and diagnosis can be more difficult. And, although treatments exist, they can be limited and expensive. But, the health of our feline cats is more important than money, right?

For diagnosing a cause of cat alopecia your veterinarian will do something of the following:

  • Complete blood count (CBS) – for hormonal and thyroid imbalances
  • X-ray
  • Skin biopsy or skin culture – if the cause is skin issues
  • Analysing skin scraping and hair samples
  • Hypoallergenic diet trials

Your cat can be treated in the form of: Injections, Ointments, Tablet, Lotions, Shampoos, Dietary advice, Supplements and Behavioral therapy. (It all depends on the cause of cat hair loss / cat alopecia).

We can see that the reason of cat hair loss (cat alopecia) are various. But, what ever the cause is, remember to take your cat to veterinarian as soon as posible. Even if you see some small signs of excessive grooming or hair loss, call your veterinarian. Our felines health comes first!

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