causes of a dog that pants heavily
It can be due to overheating (heat exhaustion), or if your dog pants even while resting, it may mean that he has some underlying health problem, such as a heart problem. This page looks at the common causes of excessive heavy panting in dogs and what you can do to deal with the issue.eat Stroke. Heat stroke is perhaps one of the most common causes of heavy dog panting that can lead to devastating damage to the dog's physical health. If a dog is left in a parked car on a hot summer day, or has been out playing or running for a long time in the heat, he can easily get heat stroke.