Reasons for dog hair discoloration:

1. As the dog ages, its hair will gradually fall off and its color will gradually fade.

2. If the owner feeds the dog high-salt and high-oil food for a long time, it will also cause the dog's hair to change color.

3. The discoloration of the dog’s hair may also be caused by the change of seasons.

4. It may also be that the living environment is relatively humid, causing the dog’s hair to change color.

Solutions to dog hair discoloration:

1. If the owner wants to restore the dog’s hair to health, he must first supplement the dog’s nutrition.

2. Another option is to choose a dog shower gel suitable for dogs and bathe them to improve their hair.

3. You can also take your dog outdoors to bask in the sun. Sunlight can make the dog's hair grow vigorously and promote blood circulation.