What is a bed bug?

Bed bug is a small insect which feed on warm blooded creatures, humans are the most preferable species to bed bugs, bed bugs are also a parasitic insects, they live near sleeping and resting area either in human homes, hotels, hospitals and other places that contain large human gatherings, that’s why  bed bugs have this name, bed bugs have not been proven to transmit diseases, they bite human during sleeping and leave red spots in biting areas, itching sensation and they may cause a secondary infection which a medical assistance.