They keep hidden during the day and go out at night, when to eat they go in search, alas, of our blood. Bed bugs are small, oval in shape like all types of bed bugs, brownish in color. Adult bedbugs have flat bodies the size of an apple seed. After sucking blood, however, their bodies swell and become reddish in color. Bedbugs do not fly, but they can move quickly on floors, walls, and ceilings. Bedbugs are found in temperate and tropical climates around the world. Insects are most commonly found in homes, including hotels and hospitals. Bedbugs generally hide in seams and crevices in bed mattresses and box springs, bed frames, headboards, upholstery, old furniture, closets, and in spaces under baseboards or behind a paper. loose wallpaper. Furthermore, bedbugs can be transported from one place to another using used luggage, furniture, clothes and mattresses. Although often associated with unsanitary living conditions, bed bug infestations also occur in clean, well-kept accommodations, including five-star hotels and resorts. Bed bug infestations have been increasingly reported in hotels, dorms, homes. , apartments, nursing homes, cruise ships, shelters, prisons and hospitals. Before World War II, bed bug infestations were much more common, however, after the widespread introduction of DDT use in the mid-20th century, bed bug infestations became much less frequent. The recent resurgence of bed bug infestations around the world is thought to be related to several factors, including the increase in international travel, dense urban living conditions, insecticide resistance and new and ineffective pest control measures.