The answer to 'why do I have flea' is that fleas are a common pest problem in many homes, often brought in by pets or other animals. Fleas are small, wingless insects that feed on the blood of their hosts, including humans and pets. Some common causes of flea infestations include pets that go outside, wildlife living near your home, and even secondhand furniture or carpets that may harbor flea eggs or larvae.
Symptoms of a flea infestation include itchy bites, seeing the fleas themselves, and finding flea dirt (flea droppings) on your pets or in your home. If left untreated, a flea problem can quickly escalate, as fleas reproduce rapidly and their eggs can remain dormant for long periods.