The hair loss of puppies may be caused by diseases, malnutrition, lack of care or genetics. If you find that your puppy has a hairy tail, it is recommended that you take it to the veterinarian as soon as possible for timely diagnosis and treatment.
The hair loss on the puppy may be seborrheic dermatitis or fungal infection, resulting in hair loss and tinea spots. At this time, medication must be used to treat it. It is also possible that there is seasonal hair loss. Dogs usually lose hair in spring and autumn. Just give the dog appropriate nutrition.
Dogs eat single dog food for a long time without other nutritional intake, and they are prone to nutritional imbalance. When the hair does not receive enough nutritional support, the hair color is prone to dullness, hair loss, and skin diseases.