The answer to 'why do I have flea' is that fleas are a common pest problem for many homeowners. Fleas are small, wingless insects that feed on the blood of animals, including pets and humans. They can be brought into the home by pets, wild animals, or even on clothing and furniture.
Some common causes of flea infestations include having pets that go outdoors, living in an area with a lot of wildlife, or having cracks and crevices in your home where fleas can hide and breed. Symptoms of a flea problem include seeing the fleas themselves, experiencing itchy bites, and finding flea dirt (flea feces) in your home.