FLEAS Many problems and diseases can be caused by fleas. They are the most common parasite living in the coats of dogs, cats and rabbits. To survive, fleas feed on the blood of a pet, and occasionally us! Flea bites cause irritation and discomfort and can lead to skin disease. Fleas may also infect your pet with a tapeworm. The most common sign of infestation is the sight of adult fleas moving throughout your pet's fur, or the flea dirt often left on surfaces where your pet has been. However, there are other invisible signs as well - Immature egg larvae are distributed through our homes in carpets, bedding, rugs etc. - so it is imperative to treat the environment as well as your pet. Did you know? A female flea can lay up to 50 eggs per day As many as 1,500 eggs can be laid in an adult flea's lifetime Fleas can live for at least 4 months if not treated or eaten by the host