Physical Symptoms
- Itching and Irritation: One of the most common and noticeable symptoms is intense itching, which can lead to excessive scratching, biting, and rubbing of the affected areas. This is often the first sign that a dog may have lice.
- Visible Lice and Nits: Adult lice are small, wingless insects that can be seen with the naked eye, usually clinging to the hair or skin. Nits, which are lice eggs, are often tightly attached to individual hairs close to the skin and may look like small white grains.
- Dry and Rough Coat: The presence of lice can cause a dog's coat to become dry, rough, and scruffy. In severe cases, the hair may be matted.
- Hair Loss: Intense scratching can lead to hair loss, especially in areas where the lice are concentrated, such as around the ears, neck, and lower back.
- Skin Inflammation and Sores: The constant scratching and biting can cause the skin to become inflamed, red, and irritated. In some cases, open sores may develop, which can be prone to bacterial infections.
- Lethargy and Anemia: In severe infestations, especially those involving sucking lice, dogs may become lethargic and weak. Sucking lice feed on blood and can cause anemia, especially in puppies and younger dogs. Signs of anemia include pale gums, weakness, and increased fatigue.
Behavioral Symptoms
- Restlessness: Dogs with lice may be more restless than usual, constantly moving or changing positions in an attempt to relieve the itching.
- Avoidance of Contact: Some dogs may avoid being touched or groomed, as the process can be painful or uncomfortable due to the irritated skin.
- Changes in Appetite: In severe cases, dogs may experience a loss of appetite due to the discomfort and stress caused by the lice infestation.
If you notice any of these symptoms in your dog, it is important to consult a veterinarian for a proper diagnosis and treatment.