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Why is your cat shedding so much? 3 surprising things that could be causing it

When you share your life with cats, you can expect to deal with some shedding. There’s bound to be a bit of cat hair on your furniture and clothes, especially when your cat is actively shedding. Brushing is a great way to eliminate dirt, dander, and dead hair from your cat’s coat. It also increases blood circulation and improves the skin’s general condition. But if you notice your cat losing significantly more hair than usual, there might be an issue causing the excess shedding.

A woman patting a cat and inspecting its fur

Why is my cat shedding so much?

If you’re wondering, “Why is my cat shedding so much,” then consider the following potential reasons. If you can identify a cause, you may be able to take some steps to reduce the shedding and minimize the amount of cat hair that ends up scattered around your house.

Woman grooming a cat on her lap using a grooming mitt


If your cat sheds a lot, allergies could be to blame. The key to fixing the issue will be determining what your cat is allergic to.

Cats who shed excessively during certain times of the year, like the spring and fall, may be allergic to plants and trees that are in bloom at the time. Just like humans experience fluctuating allergies, so can cats. This can sometimes be difficult to spot, though, since your cat will naturally shed at these times of the year.

Food allergies can be common in cats. It’s also possible that your cat is allergic to something else in the environment, such as dust, perfume, and even cleaning products.

If your cat has an allergy, you might notice that he’s increasingly itchy, shedding a lot, and losing so much hair that he’s developing bald spots. Your vet can help identify the cause of the allergy and provide a solution to help your cat feel more comfortable.


Stress can cause cats to both over-groom and not groom enough, which can contribute to increased shedding.

If your cat is stressed, you might notice other symptoms as well. Your cat might lose his appetite, start sleeping more or less, and become anti-social, retreating to secluded areas in your home. In some cases, a stressed cat might react aggressively to other family members with whom he’s usually friendly and comfortable.

If you notice some of these signs, then stress might be behind your cat’s increased hair loss. You’ll need to try to identify the source of the stressor. Think about any lifestyle changes that you’ve made lately, like bringing home a new baby, adopting a new pet, or moving to a new house. Any shifts like these can be a major source of stress for cats.

You can help reduce your cat’s stress by giving him a spot in your house where he feels safe and comfortable. This might mean a room all to himself. You can also try using cat pheromones to help calm and reassure your cat.


Even pregnancy can cause increased hair loss. The hormone changes can cause your female cat to lose more hair while she’s pregnant. The good news is that this is temporary, and once your cat gives birth and her body goes back to normal, the excess shedding should resolve.

Why a vet check is important

Several other health conditions can cause excessive shedding in cats. Ringworm, thyroid disease, fleas, and other issues can cause your cat to lose more hair than normal. Sometimes a cat can have a reaction to a medication or a flea treatment that causes hair loss. If you notice any changes in your cat’s health, including increased shedding, it’s always a good idea to take your cat to the vet for a checkup, just in case.

Scared cat sitting on a couch hiding under a blanket

Most of the time, increased shedding is harmless, and once you determine what’s causing it, you may be able to reduce it. Even factors like diet and nutrition can contribute, so it’s important to carefully consider all the factors. In the meantime, be sure you have the right tools to help control the hair in your home. A powerful vacuum designed for homes with pets can help, and a few lint rollers are essential. Regularly cleaning up cat hair can help reduce how much of it ends up on your clothes.

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