Bed bugs are small insects that feed on the blood of mammals and birds. Adult bed bugs are oval, wingless and rusty red colored, and have flat bodies, antennae and small eyes.
They are visible to the naked eye, but often hide in cracks and crevices. When bed bugs feed, their bodies swell and become a brighter red. In homes, bed bugs feed primarily on the blood of humans, usually at night when people are sleeping.
There has been an increase in the past few years of bedbug infestations.