If you can tell us a little bit more than you have already, it is likely someone can help you. Cat's cry for all different reasons, and the age of your cat has a factor as well. Small kittens away from their mom and littermates for the first time will cry out of lonliness or because they are frightened. Cats cry when they are in pain, when they are anxious, there are just a lot of reasons. If this is a new behavior, the best thing to do would be to take your cat to the vet to determine if it is healthy or not. If it gets a good report, then you have to examine the cat 's life of late and see if you can detect why it cries. If it is part Siamese, they are by nature talkative and criers.