Fleas are more than just irritating—they pose real health risks to both humans and pets. Their bites can cause severe itching, allergic reactions, and transmit harmful parasites like tapeworms. Because fleas are small and fast-breeding, they often go unnoticed until the infestation becomes widespread. Common hiding spots include pet bedding, carpets, upholstery, and cracks in floors, making them hard to eliminate without professional help. Ignoring a flea problem or relying on temporary fixes can allow the infestation to grow rapidly and affect your entire household.