If there is not much dander on the puppy's body and there are no abnormalities in the skin, it is a normal metabolism of the skin. If your puppy has ringworm spots and dandruff, severe hair loss in the affected area, and the puppy scratches frequently, it indicates that it is caused by a fungal infection. It is recommended to clean and disinfect the affected area, and then use antifungal drugs for treatment.

If the dog has insect droppings on its hair and is scratched frequently, it indicates that it is caused by parasitic infection. It is recommended to immediately carry out external deworming and thoroughly disinfect the environment.