Bed bugs can come from other infested areas or from used furniture. They can hitch a ride in luggage, purses, backpacks, or other items placed on soft or upholstered surfaces. Bed bugs are attracted to carbon dioxide, warmth, and human scent, so they can easily spread through the movement of people and their belongings. They can make their homes in any space if they’ve tagged along on something you’ve brought indoors from a place where they got into your belongings. Bed bugs can even survive pesticides by simply moving away from sprayed or treated areas and finding new places nearby to live.

In summary, bed bugs can be brought into a home through various means, including travel, used furniture, and other infested areas. They are attracted to carbon dioxide, warmth, and human scent, and can easily spread through the movement of people and their belongings.