Cockroach nests are often hidden in dark, damp areas like behind appliances, inside walls, or under sinks. Look for egg casings, shed skins, or oily smears around cracks and crevices. A musty odor and visible cockroaches are also signs of a nearby nest. Visit: https://safepestsol.com/how-to-identify-a-cockroach-nest-in-your-home/