Tail sucking is a common behaviour in which the kitten or adult cat sucks or chews the tip of the tail; it is similar to thumb sucking in children. Some cats will suck their tail compulsively, which can lead to hair loss and trauma.
Why do cats suck their tail?
Sucking is a natural reflex that goes back to infancy when kittens suckled from their mother, which was comforting. Some cats will continue to suck well into adulthood. Tails aren’t the only target, others include soft toys, clothing, blankets, people and other cats.