The common Bedbug (Cimex lectularius), is found in temperate regions across the world. Usually found in human habitation, hiding in cracks and crevices, in beds and bedding in the daytime, emerging at night to feed on human blood.
Their bites don’t cause much irritation, but the bugs possess stink glands on their thorax that cause a disgusting odour when disturbed. Though they can harbor pathogens in their bodies, including plague and hepatitis B, they have not been linked to the transmission of any disease and are therefore not considered a medical threat.
However, humans can get skin infections and scars from scratching bites. For causing disgust and
sheer nuisance value, Bedbugs are perhaps the No. 1 pest!