Allergies can also produce excessive cat shedding.
My Cat Is Shedding Excessively. If a cat is shedding excessively and abnormally, it points to a health issue but you need to be clearer and more comprehensive about the circumstances and about what is going on. Shedding is due to seasonal increases in light not necessarily heat.
Your Cat's Excessive Shedding Can Be a Sign of Bigger Problems from blog.petwellbeing.com
There are also shedding combs that you can get that help too. Cats shed and groom themselves regularly, but sometimes they seem to really be letting go of their hair. Shedding is a natural, healthy process in all cats, in which they shed in order to remove dead hair which can cause skin irritation.
If your cat is feeling under the weather, then he is also less likely to groom himself to remove hairs as they shed.
The reason our cat is shedding more than usual could be down to parasites, poor nutrition or even stress. Take him to the vet and have him examined. If your cat is feeling under the weather, then he is also less likely to groom himself to remove hairs as they shed. Here are some of the reasons why cats shed excessively and what you can do to minimize all that cat hair laying around your home.