Panting cools down a dog's body similarly to how sweating works for humans.
Hard exercise and play can trigger temporary panting to prevent overheating.
Heavier anxious panting may point to an underlying emotional issue.
Excessive panting can be a sign of dangerous heatstroke requiring emergency cooling.
Rapid open-mouth panting may indicate respiratory trouble and warrants prompt vet attention.
Unusual panting can signify pain or injury causing discomfort.
Mild to moderate panting is normal for dogs trying to stay cool in high temperatures.