When there�s more sunlight, cats start shedding. indoor cats are exposed to less natural sunlight and more artificial light; their bodies lose track of seasonal changes, and they shed constantly. Cats that shed in the spring lose their heavy winter undercoat to keep cool in summer. in the fall, they�ll grow a new coat in preparation for winter. regardless of when your cat sheds, the process is natural and important. dead fur can cause skin irritation, and it needs to be removed through shedding.. What you should know about cat's shedding. cats in the wild generally shed their coats twice a year, in the spring to lose the heavy winter undercoat and in fall in preparation for the "grow-in" of the next winters' undercoat. however, since we have domesticated cats and subjected them to air-conditioning in summer and artificial heat in.
