Cats twitch when they sleep. We can divide them into two situations. In the first case, it is normal. For example, if you find that your foot, its forelimbs or hind limbs have such slight jitter or sudden convulsions when sleeping, then this is a normal physiological phenomenon. That is, when our brain is sleeping, its muscles will twitch involuntarily, which we don't have to worry about. In the second case, if the cat has some neurological diseases, it may also twitch. In this case, its performance is sudden rigidity. For example, its front foot stretches forward and its head leans back. This is what we call a horn bow. If this happens, we need to wake it up immediately and then wake it up immediately. For example, if you start paddling, you need to take it to the hospital. We need to show the doctor if this is a symptom of nervous system. If it happens frequently, we may need to do some head examination, such as CT examination or visceral examination, and take a photo to see if there are hepatic encephalopathy or brain tissue lesions.