In summer, why do dogs always like to pant with their mouths open?

In hot summer, I always see dogs panting with their mouths open. I think this is because dogs have no sweat glands and can't sweat, so they can only dissipate heat in this way.

Dogs don't have sweat glands, so they have to open their mouths and gasp to accelerate perspiration. That's right. In fact, some dogs also have sweat glands, but there are fewer sweat glands, which are distributed on the feet and nose. It is not enough to dissipate heat only in this way, so they can only dissipate heat by breathing with their mouths open. Especially in hot summer, dogs not only breathe with their mouths open, but also drool a lot, so we must pay attention to replenish enough water for dogs.

Some dogs also like to stick out their tongues when they sleep. Actually, this is normal. Maybe the dog is having a beautiful dream or eating delicious dog food. Therefore, if the dog sticks out its tongue while sleeping, it means that the dog is sleeping, and the owner should not disturb it. In addition, dogs will pant with their mouths open when they are sick. If the dog is short of breath, it is likely that the dog is ill. Take the dog to the hospital as soon as possible.

Dogs pant with their mouths open when they are afraid. Dogs are afraid of some loud noises, such as fireworks or thunder, which will speed up their breathing. At this time, the owner should accompany the dog, and can gently touch them, or give them something to eat, or give them toys that they usually like to play with. I believe that they will soon be able to ease their fears and their breathing rate will return to normal.