Cold weather can cause Bichons to shiver and grunt. The owner should pay attention to keeping the Bichon warm when the weather is cold. He can lay an electric blanket in the nest or make the nest thicker. When the introverted and timid Bichon Frize feels scared in an unfamiliar environment, he will also tremble and groan, calling his owner for a sense of security.

The Bichon Frize may be sick and trembles and groans to remind the owner that he is not feeling well. Once the owner discovers any abnormality in the Bichon Frize's body, he must consult a professional doctor for medical treatment.

When Bichon Frize is in a state of excitement and tension, Bichon Frize will also tremble. Bichons will show this when they go out to play or sleep. In this case, the owner does not need to worry too much.