Which part should I change to my dog's hair first? You should start with the hair on the neck and armpits, because these areas have the most hair, and the hair on the neck and armpits is more likely to fall off. Also, consider starting with the legs, as they also have a lot of hair, as well as special parts like the tail.
Change the hair of the dog first. When the temperature rises in spring and summer, the thick hair on the dog's body will take off and some thin and soft quilt hair will grow. When winter comes, it is just the opposite. Ordinary hair should fall off and replace it with warm fluff.
The old hair of dogs falls off because new hair grows out. If the puppy loses hair one by one and the skin color is normal, it is normal to change hair. Some diseases, such as skin diseases, malnutrition, endocrine disorders, excessive salt intake, etc., can also cause different degrees of hair loss to the dog. Alopecia areata may appear on the dog, so you should go to the doctor immediately.