A cat's arched back has the following meanings:
1. Stretching: A cat will arch its back when it just wakes up or if it keeps moving for too long. In this case, the cat is just stretching its muscles.
2. Enhance explosive power: Cats will also have the behavior of arching their backs when hunting, which means to increase their explosive power to hunt.
3. Angry: When a cat is angry, it will also arch its back and the hair on its back will stand up to express its dissatisfaction.
4. Fright: The cat is in a nervous state. For example, frightening it with toys or shouting loudly will cause the cat to be suddenly frightened, causing the cat to arch its back.
5. Scare off the enemy: If a cat encounters an animal that is more powerful than it, it will arch its back. The cat wants to look more powerful and scare off the enemy.
6. Sick: If the cat often arches its back, it may be sick. If the cat is also accompanied by symptoms such as meowing, shaking, not eating or drinking, it means that the cat is in pain.
