Bed bugs may be slow movers, but they spread very easily—often unseen. The spread of bed bugs often happens via infested mattresses, box springs, furniture, suitcases, clothes, and more. These pests can also travel from one room to another, or even from one unit to another, through common walls, ceilings, pipes, telephone cables, doorways, and more. One of the main reasons why a bed bug infestation can spread throughout a property is when people move infested furniture or bedding. This is a sure way to introduce bugs into other areas of your home that were previously not infested.