This means that it is in a bad mood at the moment and its mood is relatively low. When a dog feels depressed and lonely, its tail hangs low. Of course, when a pet dog is sick, its tail will droop. To sum up, the dog's tail drooping may be influenced by emotions or may be plagued by diseases.
Extended data:
Although different types of dog tails have different shapes and sizes, their tail movements express similar meanings, and dog tail movements are also a kind of "language".
Generally, when the host is excited or happy, he will shake his head and tail. The tail not only swings from side to side, but also keeps spinning. The tail is tilted up to show joy; A drooping tail means danger; The tail does not move, indicating anxiety: the tail is tilted, indicating fear; Shake your tail quickly and horizontally, symbolizing friendliness. The movement of the dog's tail is also related to the owner's tone.
References:
Dogs wag their tails _ Baidu Encyclopedia