An impacted hair follicle dog is a condition in which a hair follicle becomes blocked by keratin and sebum, resulting in inflammation and the formation of a painful bump.
Impacted hair follicles are a common problem in dogs, especially those with thick, curly coats. They can be caused by a number of factors, including poor grooming, allergies, and hormonal imbalances. Left untreated, impacted hair follicles can lead to serious infections.