First, the dog suddenly becomes more and more listless, and the dog is actually very energetic. Therefore, once the dog lasts for a few days, the dog has become older, indicating that the dog will leave.

Second, hiding in the corner, the dog is an energetic and cheerful little animal. He likes to walk around, play around, and pursues the sun. Once the dog keeps hiding in the corner and clears other situations, it will be because the dog has long felt that his life has come to him has already ended, so he first hid in the corner and waited to die.

Third, poor appetite, dogs will definitely shine when dealing with food. When they smell the aroma of food, they will immediately run to the front of the bowl. Once the dog mainly shows no appetite at the beginning and clears the problem of gastrointestinal problems in the dog, it will mean that the dog's concept has problems in its own body.

Fourth, poor appetite, dogs will definitely have their eyes shining when dealing with food. When they smell the aroma of food, they will immediately run to the front of the basin. Once the dog mainly shows no appetite at the beginning and clears the problem of gastrointestinal problems in the dog, it will mean that the dog's concept has problems in its own body.

Fifth, unclean things appear at the corners of the eyes. Most dogs fed at home are not prone to wet and unclean things. Therefore, you all find that there are many unclean things on the upper eyelids of the dog, so you must pay special attention to it.