What happens if a dog eats dog hair?

A dog eating a small amount of hair usually has no effect, since dogs have strong digestion and the small amount of hair passes out with the feces. If the dog eats a lot of hair, it may show gastrointestinal discomfort such as retching, vomiting, loss of appetite, lethargy, and constipation; the owner can give probiotics and hairball paste to regulate the stomach and lubricate the intestines, helping expel hairballs.

In addition, groom the dog more often and regularly clean the hair in the dog bed and around the home to prevent the dog from swallowing too much fur.