What is the reason for the dog to lose hair

Using human body wash to bathe the dog will make it shed hair, it is recommended to use canine specific body wash instead. Dogs with chronic malnutrition will lose hair, owners can change the dog food to improve the diet. Dogs infected with parasites will also lose hair, the owner can use dewormer to deworm it. Dogs will change their hair in the summer and autumn, help it comb the hair every day can. If a dog is infected with lice and other parasites, it will frequently scratch with its paws and teeth to scratch the itchy areas, causing the dog to lose its hair. Owners can use insect repellent to deworm their dogs and keep them away from grass and mud puddles where there are more bugs when they play.