If you think you have a what do bed bug droppings look like, the first thing you’ll probably notice is fecal matter. These dark red smears are left behind by the pests after feeding, and they contain partially digested blood. These spots tend to cluster near the bed bugs’ harborage. You can also find them on furniture, especially wood pieces like headboards and box spring frames.
Bed bug fecal matter has a dark color, ranging from rusty to black. It looks darker than fresh blood. It also has a soft consistency, which is how you can tell it apart from regular dirt.
The Telltale Signs of Bed Bug Fecal Matter: A Visual Guide
The smears will usually be circular in shape and about the size of an ink stain. This is because they are liquidy and soft, which means that the smear will spread when it comes into contact with an absorbent surface (like a mattress protector or sheet). The stains are permanent, which is one of the biggest giveaways when you have a bed bug infestation.
Because bed bugs suck blood through their mouths, their feces are always liquid. The fecal matter will smear when it comes into contact with water, as well. If you’re suspicious of a smear, try gently wiping it with a damp cloth to see if it smears or stays clear. If it does smear, it is likely from bed bugs, but it’s still worth testing with another cleaning solution to make sure. This will help you avoid overcleaning the area, which can make the infestation worse.