Adult bed bugs have flattened, oval bodies and no hind wings. They have reddish-brown bodies and measure around 0.05 – 0.01 inches wide and 0.16 – 0.20 inches long. Like lice, they feed on ...

One of the reasons the human-associated bed bugs may have thrived was the eventual establishment of settlements and cities, like Mesopotamia, about 12,000 years ago.

What do bed bugs look like? Bed bugs are small, flat, reddish-brown insects without wings. Roughly the size of Lincoln’s head on a penny, the pests feed on blood to survive, according to the CDC.

Some people, like her, don’t even react to flea bites, she says. Photos of bed bugs & bites These are a few examples of what bed bugs look like, along with the bites they can leave.

Bed bugs, a blood-sucking insect, tend to hide themselves in beds in homes or hotels. Here's how to avoid infestations.