The inspection is done by trained bed bug experts that know exactly what to look for. The bed bug is not easily detected by most people. The babies are clear and three can fit on a pinhead. Adults are the size and color of an apple seed. Only 30% of people that get bit will show a bite reaction. Most people will never see the secretive bed bug until it has been breeding for several months. By then, the bed bug has likely transplated itself in several connecting rooms.