Some Bed bug symptoms are not evident to the untrained eye. A comprehensive examination uses dismantling the bed and standing the components on edge. Things to look for are the bugs themselves, and the light-brown, molted skins of the nymphs. Dark areas of dried bed bug excrement are often present along mattress seams or anywhere the bugs have actually resided. Frequently the gauze fabric underlying the box spring need to be gotten rid of to access for inspection and possible treatment.
Effective treatment of mattresses and box springs is difficult, however, and infested parts might have to be disposed of. Fractures and crevices of bed frames must be analyzed, particularly if the frame is wood. (Bed bugs have an affinity for wood and fabric more so than metal or plastic). Headboards protected to walls need to likewise be removed and examined. In hotels and motels, the location behind the headboard is often the top place that the bugs become developed. Bed bugs likewise hide amongst products saved under beds.
Nightstands and dressers must be cleared and analyzed inside and out, then tipped over to check the woodwork below. Frequently the bugs will be concealing in fractures, corners, and recesses.
Upholstered chairs and couches should be inspected, especially seams, tufts, skirts, and crevices underneath cushions. Couches can be significant bed bug hotspots when made use of for sleeping.
Other common locations to find bed bugs include: along and under the edge of wall-to-wall carpeting (especially behind beds and furnishings); cracks in wood molding; ceiling-wall times; behind wall-mounts, image frames, switch plates and outlets; under loose wallpaper; among clothes stored in closets; and inside clocks, phones, televisions and smoke detectors.
The difficulty is to find and treat all locations where bugs and eggs may exist. Bed bugs tend to gather in certain locations, but it is common to find an individual or some eggs spread here and there. Persistence and a bright flashlight are requisites for success. Professional Inspectors occasionally also inject a pyrethrum-based, "flushing agent" into crevices to help expose where bugs may be concealing. A comprehensive treatment of a house, hotel, or house might take numerous hours or days.