What is the main cause of bed bugs?

Question: What is the main cause of bed bugs?

Answer: “Hitchhiking” from an infested location or item to a previously non-infested location or item are the main causes of bed bugs. Some items that enable bed bugs to hitchhike are used furniture, luggage from an infested hotel/motel or in backpacks that children bring home from school.

Bed bugs are blood feeders, so once inside they move from one location to another as they search for a bloodmeal. Bed bugs must to have safe places to hide. So, any home or building that is cluttered makes a great place for bed bugs go unnoticed until the population grows into an infestation.