What Do Cockroach Droppings Look Like? How to Spot the Signs of an Infestation

If you've noticed strange black or brown specks around your home, especially in the kitchen or bathroom, you might be wondering if they're cockroach droppings. Spotting and identifying roach waste is one of the first steps to recognizing a larger pest problem.
At A-Action Pest Control, we know how unsettling the thought of a roach infestation can be. That’s why we’re here to help you understand what cockroach droppings look like and what other warning signs to look out for by offering comprehensive pest control services.
What Do Cockroach Droppings Look Like?
The appearance of cockroach droppings can vary depending on the species, size, and even the diet of the roaches in your home, making it important to understand what to look for when identifying signs of an infestation. Different cockroaches leave different traces behind as well. See the table below to learn the signs of different types of cockroaches will leave behind.

You’ll often find roach droppings in places where they are most active, like dark, humid, and hidden areas such as:
- Behind appliances
- Inside kitchen cabinets or drawers
- Under sinks and around pipes
- Along baseboards or in room corners
What Do Roach Droppings Mean?
Finding roach droppings in your home usually means one thing: cockroaches are living and feeding nearby. These pests are nocturnal, so you may not see them during the day, but their waste gives them away.
Cockroach feces contain pheromones that attract other roaches, so the more droppings you find, the more likely it is that a full-blown infestation is underway.
Other Signs of a Cockroach Infestation
Spotting cockroach droppings is a common early warning sign of an infestation—but it’s not the only one. Cockroaches are sneaky, nocturnal pests that leave behind a variety of subtle clues as they move through your home. Knowing what to look for can help you catch an infestation early before it spreads and becomes more difficult to control.
Unusual Odor:
- Strong, musty, or oily smell in infested areas
- Caused by cockroach pheromones and decomposing bodies
- Smell intensifies as the infestation worsens
Egg Casings (Oothecae):
- Capsule-shaped, brownish casings containing multiple eggs
- Often found behind furniture, inside cabinets, or near appliances
- Typically hidden in warm, dark nesting areas
Smear Marks:
- Dark, smeared streaks on walls or flat surfaces
- Formed when roach droppings mix with moisture
- Common in high-traffic roach zones
Shed Skins & Body Parts:
- Cockroaches molt several times before adulthood
- Look for shed exoskeletons, dead roaches, or scattered body parts
- Frequently found behind appliances, in corners, or along baseboards
Nighttime Activity:
- Roaches are nocturnal and active in the dark
- May hear faint scuttling sounds at night
- If you see them scatter when lights are turned on, infestation is likely
Why You Shouldn’t Ignore the Signs
Roaches aren’t just unpleasant—they’re dangerous. Their droppings can trigger asthma, spread bacteria like Salmonella, and contaminate food surfaces. If you're finding evidence of cockroaches, it's important to act quickly before the problem escalates.
Stop the Infestation Before It Grows
If you've noticed any of these signs in your home, don't wait. Roaches reproduce quickly, and DIY solutions often fail to reach the root of the infestation.
At A-Action Pest Control, we specialize in:
- Comprehensive roach inspections
- Targeted treatments to eliminate the source
- Safe, effective, and long-lasting pest control solutions
We’ve helped families across Northern Illinois and Southeastern Wisconsin protect their homes for over 30 years—and we can help you too.
Need Help Identifying Droppings or Getting Rid of Roaches?
Contact A-Action Pest Control today to schedule a roach inspection or learn more about our residential pest control services. We’ll help you get your home pest-free—fast.