Bed bugs are messy eaters. After they feed, they leave behind small, dark spots. These are their droppings. Gross, but useful.
Check your sheets, mattress seams, and headboard. Look for tiny black or brown specks—like someone flicked a fine-tip pen. They’ll smear if you touch them with a damp cloth. That’s a dead giveaway.
Fun fact: bed bug poop is basically digested blood. So it’s dark, rusty, and quite distinctive. You’re not looking for dirt; you’re looking for tiny blood stains.
The Shelly Surprise
Bed bugs shed their skin as they grow. They leave behind translucent, empty shells. They look like little ghost bed bugs. Creepy, but easy to spot.
Search your mattress seams, box springs, and even behind picture frames. You might find a cluster of these shed skins. They’re pale yellow or brownish, about the size of an apple seed.
If you find one, you’re not alone. British homes overrun by these shells are a common call-out for pest controllers. The more shells, the bigger the party.
How do you know if you have bed bugs? - Prim.net
