To check for bed bugs, use a flashlight to examine the bedding, mattress and other furnishings in the room for live bed bugs and stains caused by the bug's waste. It may be necessary to examine walls, appliances and other features of the room to locate bed bugs.
To determine the presence of bed bugs, use a bright flashlight to examine the bedding and mattress for small rust-colored blood stains or dark-colored stains caused by the pest's fecal matter. To examine the mattress, remove the bedding and check the seams of the mattress for dark spots. Lift each corner of the mattress and examine the underside near the seams for live bed bugs or black stains caused by waste material. Blood stains are typically found on sheets or other bedding, and live bed bugs are typically most active at night.
To determine the presence of bed bugs on other types of furnishings, examine the seams of soft furnishings, such as the seams on sofa cushions, and around screws or other corners or recesses on the furnishing. It is also necessary to examine the walls and other items in the room. For instance, bed bugs may be present in the adjoining corners of drawers or under any item, such as smoke detectors, hanging on the walls. Use the flashlight to check inside your wall outlets for bugs or any signs of infestation.