White strips in dog feces are caused by parasites. White flat strips pulled out by dogs may be roundworms and tapeworms. If the owner finds such bugs in the dog's stool, it means that the dog is infected with parasites.
It requires immediate treatment, and internal anthelmintics should be taken orally to deworm. After the treatment course, corresponding preventive measures should be taken, and deworming should be carried out regularly on a monthly basis. Parasites will affect the puppy's development and nutritional intake.