* Skin irritation: Flea bites can cause itching and irritation. This can lead to dogs scratching and biting themselves, which can further damage their skin.
* Allergic reactions: Some dogs are allergic to flea saliva. Flea allergy dermatitis is a common condition that can cause severe itching, skin inflammation, and hair loss.
* Tapeworms: Fleas can also transmit tapeworms to dogs. Tapeworms are intestinal parasites that can cause weight loss, diarrhea, and vomiting.
* Blood loss: In severe cases, fleas can cause significant blood loss. This can lead to anemia, which can be life-threatening.
In addition to these problems, fleas can also transmit diseases to dogs. Some of these diseases include:
* Bartonellosis: A bacterial disease that can cause fever, anemia, and weight loss.
* Plague: A bacterial disease that can be fatal to humans and animals.
* Tularemia: A bacterial disease that can cause fever, chills, and swelling of the lymph nodes.
Fleas are a serious pest that can cause a number of problems for dogs. It is important to take steps to prevent fleas from infesting your home and your dog.