Bites. Of all the signs related to a bed bug infestation, bites are probably the most obvious (and most common). Bed bug bites can be flat or raised, and are characterized by itchy, red spots that tend to show up in a zigzag or cluster. They'll often appear on the chest, back, neck, feet, face, and hands.

How long does it take to know if you have a bed bug infestation?

How are bed bug bites diagnosed? Although most people do not realize they have been bitten by a bed bug until bite marks appear (which can be as long as 14 days after the bite), finding a bite mark is the easiest way to identify a bed bug infestation.

Can you have bed bugs and not see them?

These insects lead a very cryptic and secretive lifestyle and will often go undetected. It is best to have a highly trained professional conduct the inspection for you. Occasionally you may see evidence of a bed bug infestation without actually seeing any bed bugs. Bed bugs leave fecal stains in the areas they inhabit.