The dog's frequent stretching and arching of the back may be caused by stretching muscles, exercise fatigue, coquettishness, menstrual period or physical discomfort. The dog's mental state needs to be observed. If there are no other abnormalities, there is no need to go too far. Worry. Generally, dogs will stretch after waking up or lying in the same position for a long time, which makes the body very comfortable.
