Although most dogs shed their hair, some breeds tend to do it more often and to a greater degree than others. It is especially common for dogs to “blow coat” to adjust and adapt to seasonal changes. They usually shed more during the summer than the winter months.
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This happens due to the seasonal shedding rotations related to variations in light. However, if your dog is shedding more than normal, especially to the point of developing bald patches on the body, there’s a good chance your pet pup is suffering from canine alopecia, which warrants proper attention and care.
- It can indicate medical problems such as an infestation by parasites, like mange, mites, fleas, or ticks, as well as an infection by a bacteria or a fungus, like the ringworm fungus.[1]
- Allergies can also be responsible for sudden hair loss in dogs, which may be triggered by environmental elements, such as dust, mold, and pollen, or parasites such as fleas and mites. Such adverse reactions can also result from something in the dog’s food, the food dish, or the dog’s blanket. Certain breeds have a higher predisposition for allergies, including Golden Retrievers, Yorkshire Terriers, and Bulldogs.
- Hair loss can also be indicative of diseases involving certain hormonal abnormalities or imbalances. Hyperadrenocorticism, also known as Cushing disease, and hypothyroidism are two such diseases that manifest themselves through a variety of symptoms including hair loss..[2][3]