The length of a dog's summer hair should be determined based on its breed, activity level and living environment. Generally speaking, for dogs with high hair density or round bodies, the hair can be trimmed appropriately to help dissipate heat, but shaving is not recommended to avoid affecting the dog's temperature regulation ability and skin protection. For small dogs or short-haired dogs, the hair can be left slightly shorter to allow for rapid heat dissipation.

There is no fixed standard for the specific hair length, but professional dog clippers usually recommend leaving at least a certain length. The hair protects your dog's skin from sun damage and insect bites. For example, some cool summer styles suitable for dogs include using a razor to leave about one centimeter of hair on the body, and trimming the limbs, buttocks and other parts appropriately.

When trimming your dog's hair, you should avoid shaving close to the skin to avoid causing skin damage or affecting the quality of hair growth. At the same time, keeping your dog well hydrated and providing appropriate walking times are also effective ways to help your dog stay cool in the summer. If you're not sure how to choose the right hair length for your dog, talk to a professional veterinarian or groomer.