Pet owners can first smell the window to see if there's any unusual odor or foreign objects. If so, simply clean it up promptly, and the cat may stop licking it. If the cat continues to lick the window frequently after cleaning, it may have pica.
Symptoms of pica in cats Some pet owners may not understand why cats develop pica. Feline pica means that cats will eat strange or unusual things, such as licking glass. Some cats with pica also like to lick walls, tables, chew plastic bags, and some even chew on their own feces. If pet owners notice their cats eating or chewing inappropriate things, they should be alert to the possibility of pica. 
Some owners may have heard of pica, but don't know how it develops in cats. Feline pica is caused by a lack of trace elements. If pet owners only feed their cats a single type of cat food, the cat's body will lack trace elements, which will prevent the cat's body from developing normally, leading to problems with its sense of taste. As a result, the cat will eat random objects.
Treat the cat promptlyWhen a cat suffers from pica, pet owners need to take timely measures to help manage it, otherwise, the cat's continued licking and eating of random things can be very harmful to its health. Pet owners should give their cats pet nutritional supplements such as mineral supplements, and also provide appropriate dietary supplements, such as fruit and vegetable pieces, beef, chicken breast, and fish soup.
When a cat's pica hasn't improved, the pet owner should keep the cat confined and prevent it from roaming freely, otherwise the cat might eat random things when the owner isn't looking.
