You flick on the kitchen light at midnight, and there it is, a cockroach making a dash for the nearest gap in the walls of your Dubai home. Most of us have had this moment, and it usually comes with the same questions: where did this thing come from, how is it still alive, and why won’t it just leave?
Cockroaches are strange, stubborn creatures, and once you know a bit more about how they operate, their behaviour starts to make a lot more sense. Here are 10 facts worth knowing, especially if you recently got cockroach pest control done and do not want your home to be infested with cockroaches again.
1. They’ve Been Around Since Before the Dinosaurs
Cockroaches have been crawling around for hundreds of millions of years, which is part of why they’re such survival experts. They’ve had an enormous amount of time to adapt to nearly every environment on Earth, including deserts, rainforests, and yes, apartment buildings in Dubai.
That long history is exactly why they’re so hard to shake off. Evolution has given them a toolkit most pests could only dream of.
2. They Can Go Without Food for Weeks
Cockroaches can survive surprisingly long stretches without eating, though how long depends on the species, the temperature, and how much water they can find. Water is actually the bigger issue for them; dehydration will kill a cockroach far faster than hunger will.
That’s worth remembering if you’ve cleared out every crumb in your kitchen and you’re still seeing them. Cutting off food isn’t enough on its own. You need to think about moisture too: a leaking pipe, a damp corner under the sink, condensation on a window.
3. They Can Hold Their Breath for Half an Hour
Cockroaches breathe through small openings on their bodies called spiracles, and they can seal these off to survive underwater (often for 30 minutes or more).
So no, flushing one down the toilet isn’t the guaranteed fix people think it is. It buys you a moment of satisfaction, not necessarily results.
4. Some Can Live for Weeks Without a Head
This one sounds like an urban legend, but it’s genuinely true. Cockroaches breathe through their bodies rather than through their mouths, and their nervous system doesn’t rely on the head the way ours does. So a headless cockroach can technically keep moving for days, sometimes even weeks.
Eventually it dies anyway, since it can’t eat or drink without a mouth. So while it’s a great party fact, it doesn’t mean cockroaches are unkillable.
5. One Apartment’s Problem Is Often the Whole Building’s Problem
Cockroaches are experts at using the hidden infrastructure of a building; plumbing lines, wall cavities, shared ducts, etc., to travel between units. That means an infestation isn’t always something you brought on yourself. It can just as easily be moving in from a neighbour’s kitchen or the garbage disposal room.
If you’ve cleaned obsessively and called pest control more than once but the roaches keep coming back, the source might genuinely be outside your four walls. In buildings like this, sealing your own entry points helps, but a building-wide approach is often what actually solves it.
6. They Come Out Mostly at Night
Ever notice you only seem to spot cockroaches after dark? Most common species are nocturnal i.e. they hide during the day and come out once the lights go off to hunt for food and water.
If you’re seeing them during daylight hours too, it’s often a sign that something’s off: overcrowding, disturbance, or a large enough population that there isn’t room to hide. It’s not proof of a severe infestation on its own, but it’s a good enough reason to get an inspection booked.
7. They Can Squeeze Through Gaps the Width of a Coin
Due to their flat, flexible bodies, cockroaches can fit through gaps just a few millimetres wide, including cracks around pipework, gaps under cabinets, the space beneath a door.
This is why sealing gaps matters so much, especially in shared buildings where roaches might be entering from a neighbouring unit rather than from outside.
8. Clean Homes Get Cockroaches Too
There’s a persistent myth that cockroaches only show up in messy homes. It’s not true. Sure, food waste and clutter can attract them, but even spotless apartments get infestations, because cockroaches don’t care how tidy your kitchen is if there’s a plumbing gap, a shared wall, or a delivery box that gave them a free ride inside.
Keeping things clean reduces what draws them in, but it isn’t a guarantee. Seeing a cockroach doesn’t mean you’ve done anything wrong.
9. They Can Carry More Than Just an “Ew” Factor
Cockroaches pick up bacteria and other microorganisms as they crawl through drains, bins, and other unpleasant places, and they can transfer that onto your countertops and food. Their droppings, shed skin, and body parts are also known allergens that can trigger asthma or allergic reactions, especially in children.
10. They Can Get Used to the Sprays You’re Using on Them
Some cockroach populations have built up resistance to specific insecticides over time, which is why a product that wiped out an infestation for your friend might barely dent yours. The right treatment often depends on the species involved and how the infestation has been handled before.
If you keep seeing roaches no matter what spray you try, it might not be your technique but the product. That’s usually a sign to bring in a professional rather than rotating through more supermarket sprays.
➤ How to Keep Cockroaches Out of Your Dubai Home
When It’s Time to Call Someone
One cockroach doesn’t necessarily mean an infestation. But if you’re seeing them repeatedly, spotting droppings or egg cases, or noticing activity in more than one room, it’s worth getting a professional in to take a proper look.
And if you live in an apartment building, it’s also worth flagging the issue to building management, especially if the roaches seem to be coming in from shared spaces rather than your own unit.
Bottom Line
Cockroaches are impressively good at what they do: hiding, surviving, and multiplying. That resilience is exactly why DIY fixes to get rid of cockroaches only go so far. If they keep showing up no matter what you try, professional cockroach control in Dubai can help you actually find the source, not just treat the symptoms.
