A cat barks when its back bone is pinched (when it touches its tailbone).

The reason why a cat barks when it touches its back may be caused by injury or infection of the coccyx or other parts.

1. coccyx injury: There are many nerves in the bones of the cat's back. If you touch the cat's tailbone and bark, it may be because of the pain caused by the cat's tailbone fracture or other trauma. This situation can be confirmed by observing the cat's movements and whether the cat refuses to touch it.

2. Infection: The tailbone or other parts of the cat may be infected, causing pain and discomfort to the cat. In this case, the cat may refuse to touch or bark when touched.

If the cat barks when it touches its back, it is recommended to take it to a pet hospital for examination to determine whether it is injured or infected. If necessary, drugs or other treatments can be used to help the cat relieve pain and recover. At the same time, as a pet owner, we should also pay attention to providing enough care and care for cats.