What are the reasons for severe hair loss in dogs? Have you noticed these care issues?

Jul 26,2025
5Min

Severe dog hair loss is seasonal

Dog hair loss is generally a seasonal shedding. The long hair on the puppy will fall out spontaneously, and at the same time, some very fine hair will grow on the skin. Soft short hair. The function of a dog's hair moulting is to respond to the temperature differences caused by seasonal changes through its own adjustment. Therefore, when the temperature rises or falls, the dog will perform normal hair moulting to adapt to the temperature.

Especially when the seasons change in spring and autumn, dogs shed a lot of hair. Most long-haired dogs originate in cold and temperate areas with relatively cold climates. The biggest climate feature in these areas is relatively low temperatures in winter. In order to protect themselves well, dogs will grow long hair to adapt. climate.

Some other dog breeds will also shed their hair during the transition from puppyhood to adulthood. This is normal metabolism, just like human hair, which constantly grows, dies, falls off, and is replaced. Especially during the reproductive period, estrus period, and old age, a large amount of hair loss will occur.
The above situations are all normal hair loss.

Dogs have severe hair loss or eat too much salt

Dogs need different salt than humans. Excessive salt intake will cause hair loss, and it will also cause hair loss in dogs. Increased load on internal organs. It is recommended to buy professionally proportioned and nutritious dog food, because malnutrition may also cause hair loss.

Dogs that shed a lot of hair or are bathed too often

If you love cleanliness too much, you will bathe your dog frequently, which will destroy the pH balance of your pet's skin. It is recommended to wash once every two weeks to a month in winter and once a week in summer. Please note that wet hair must be dried in time after washing.

Severe hair loss in dogs may be a problem with shower gel

The pH of dog skin is opposite to that of humans, so using human shampoo will cause symptoms of dandruff, itching, and massive hair loss. . It is recommended to choose special pet shower gel and hair conditioner for dogs. Hair spray can effectively nourish the hair and reduce hair loss.

Dogs have severe hair loss or have too little sunshine

Sunlight is beneficial to the health of the dog's coat. Lack of sunlight can also cause hair loss in dogs. It is recommended that you take your dog to bask in the sun every day and ensure 1-2 hours of sunshine. You can also place the kennel in a place where it often gets sunlight.

A dog’s hair loss is severe or its mood changes drastically

Extreme fear, tension, worry or excitement may cause hair loss in dogs. Therefore, owners should often interact and comfort their pets, and do not let them be in an extreme mood for a long time.

Dogs have severe hair loss or pathological hair loss

If the dog is infected with skin diseases, mites, fungi, etc. can cause diseases such as folliculitis or eczema, which can cause massive hair loss. in additionLice and fleas are also a headache. Usually pathological hair loss will be accompanied by small red spots or pimples. You will see the dog constantly scratching the fur with its claws and teeth. Once discovered, you should go to the hospital for treatment in time.
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