Dogs shed for several reasons, primarily related to their biology and environment. Shedding is a natural process that helps dogs maintain healthy skin and coat. The primary driver of shedding is the dog’s hair growth cycle, which consists of three stages: anagen (growth), catagen (resting), and telogen (shedding). During the telogen phase, old hair falls out and new hair begins to grow. This cycle is influenced by factors such as the dog’s breed, age, health, and environmental conditions.
Breed plays a significant role in how much a dog sheds. Some breeds, such as Labrador Retrievers, Huskies, and German Shepherds, have double coats, which consist of a dense undercoat and longer guard hairs. These breeds shed more heavily, especially during seasonal transitions when they “blow” their undercoats. Breeds with single coats, like Poodles or Dachshunds, tend to shed less, although they still lose some hair.
Environmental factors like temperature and daylight also impact shedding. Many dogs experience increased shedding during seasonal changes, especially in spring and fall, when they shed their heavier winter coats or grow lighter summer coats. Dogs living in areas with consistent climates may shed less frequently, but indoor heating or air conditioning can trigger shedding, as they create artificial seasons inside the home.
Health and grooming are also important factors in shedding. Poor diet, allergies, or medical conditions like skin infections, parasites, or hormonal imbalances can lead to excessive shedding. Regular grooming helps manage shedding by removing loose fur and promoting healthy skin. Lastly, stress and anxiety can also lead to increased shedding in some dogs, as emotional factors can disrupt the normal hair growth cycle.
Shedding is a normal part of a dog’s life, influenced by genetics, environment, health, and grooming habits.