The amount of hair a dog sheds varies depending on factors such as the breed, sex, age, and environment but also depends on how frequently the dog is groomed. It's hard to say exactly because there are too many factors at play but according to the average, a healthy adult will shed between 1.1 and 3.9 pounds of hair per year. It is during this period that some French bulldogs might shed up to 5 pounds or more. This is because of the large number of vertebrae coming in contact with each other when the dog changes direction, temperature, and hormones levels. The undercoat is not as thick as normal with some French bulldogs. The soft and curly hair should be combed regularly to remove dead hair and dirt, but bathing isn't necessarily more than once a month. Shampoos often contain harsh chemicals that leave coats dry and brittle so they shouldn't be used unless necessary. It's recommended to use a conditioner on the dog's coat, as in humans, and improve the hydration of the hair.