White flakes in dog hair, often referred to as dandruff, are a common issue that can affect dogs of all breeds and ages. These flakes are caused by the shedding of dead skin cells and can be a sign of various underlying skin conditions.
While dandruff is not typically a serious medical condition, it can be uncomfortable for dogs and can lead to excessive itching and scratching. In some cases, dandruff can also be a sign of a more serious underlying medical condition, such as allergies, skin infections, or hormonal imbalances.