Dogs have been grunting in the middle of the night, if it is spring and summer, then the dog may be in heat uncomfortable and lead to night grunting; dog sick body pain, itching, etc., resulting in dogs are very uncomfortable, but also will grunt non-stop, it is recommended to go to the hospital for examination and treatment. Dogs do not eat enough during the day, digest too fast at night hungry or thirsty and grunting, you can moderately increase the amount of feeding and ensure sufficient water. It may also be expressing that it is not well and adaptable to the unfamiliar environment, it is afraid and not adaptable.
