The white dander on the French Bulldog may be caused by skin disease or failure to use special dog shower gel. You need to go to the hospital for examination to confirm the cause and receive timely treatment. You should pay attention to your dog's hygiene at ordinary times. Give your dog a bath once a month and use a dog-specific shower gel. After washing, the hair should be dried to avoid the breeding of bacteria. The dog should be dewormed regularly and the diet should be as light as possible. , more balanced nutrition to avoid endocrine disorders in dogs.