The main reasons for dog hair loss:

1. Skin diseases: Some skin diseases, such as dermatitis, eczema, etc., will cause dog hair loss.

2. Bathing too often: Bathing your dog too many times daily destroys the protective oil layer of the dog's skin and causes hair loss.

3. Improper diet: Dogs eat food that is too salty or too sweet, and long-term high oil and salt content can also cause hair loss in dogs.

4. Substandard nutrition: The dog’s nutrition is unbalanced, the proportion of meat and vegetables is abnormal, or one side is too high, which will also cause the dog to lose hair.

5. Allergy: Dogs are allergic to certain foods and smells, causing allergic dermatitis and hair loss.

Methods to prevent dogs from losing hair frequently:

1. Regularly deworm dogs to avoid hair loss caused by parasites.

2. Don’t feed your dog anything salty. Too much salt can also cause hair loss. You can also choose some nutritional products that are good for hair and can quickly replenish hair nutrition.

3. Let your dog bask in the sun more often. Taking your pet to bask in the sun regularly is beneficial to the health of the hair.

4. Use dog-specific shower gel to bathe your dog regularly. Do not use human body wash or shampoo to bathe cats and dogs, as this will cause dandruff, itching, and massive hair loss.

5. Comb your dog's hair frequently, use a pet-specific comb to comb the dog's hair twice a day, or comb the dog's hair when walking the dog, so that the dog's hair loss at home will be significantly reduced. The hair will be more ventilated and dry after each combing, reducing bacterial growth.

6. Don’t bathe too frequently. Bathing too frequently will wash away all the oil on the surface of the dog’s skin. In this way, the protective layer of the dog’s skin will be gone, and the skin will be too dry and cause hair loss.

7. Keep the coat dry. The most important thing to do after each bath is to dry the dog’s body. Damp coat can easily become a breeding ground for bacteria, and the same is true if the dog is wet outside in the rain. , it is best to take a hot shower when you come back, rinse away the dirt, and then blow dry with a hair dryer. Be sure to keep your dog's hair dry to effectively prevent skin diseases and hair loss.

8. Maintain environmental hygiene and regularly disinfect and clean the areas where dogs often stay. Remember not to leave any detergent behind, otherwise it may be counterproductive and cause the dog to get skin diseases because of the chemicals in the detergent. .

9. Reasonable diet and balanced nutrition. Choose fresh food with balanced nutrition and fresh ingredients to feed your dog. Allowing dogs to take in sufficient vitamins to ensure the nutritional intake required by the body can make the dog's body healthier and reduce hair loss.