The reasons why dogs tremble and grunt:

1. When a puppy is in a nervous and fearful state, it will shake its body and grunt at the same time.

2. When a puppy is unwell or suffering from a disease, it will tremble and hum.

3. The above-mentioned shivering and whining will occur when the puppy is in a low temperature environment.

Solutions to a dog that is trembling and grunting:

1. If it is caused by nervousness, it is recommended that the owner provide a safe environment for the puppy and gently Gently pet your puppy to give it a sense of security.

2. If it is caused by the dog’s illness and physical discomfort, it is recommended to consult a doctor in time for treatment and medication.

3. If it is caused by low ambient temperature, it is recommended to take measures to keep the puppy warm to prevent it from catching a cold.