Why Cockroaches Are in Your Toilet & How to Get Rid of Them in Malaysia
- Nuria
- Oct 31
- 4 min read
Table of Contents
Introduction
Seeing cockroaches crawling out of your toilet? You’re not alone — and here’s how to stop it for good.
Toilets are one of the most common places to find cockroaches in Malaysia. Due to the humid environment and easy access to water and shelter, bathrooms and toilets become perfect breeding grounds. In this article, we’ll explain why cockroaches enter your toilet, the health risks involved, and how to get rid of them using safe, effective pest control methods in Malaysia.
Why Are Cockroaches in Your Toilet?
Moisture, sewage, and hidden cracks make toilets a cockroach hotspot
Cockroaches are drawn to dark, damp areas — and your toilet provides the ideal setting. Here’s why:
Main reasons cockroaches enter toilets:
Drain access: Cockroaches can climb up through dry floor or sink drains.
Moisture: Bathrooms provide constant water, which cockroaches need to survive.
Food particles: Soap scum, hair, skin flakes, and even toilet paper can attract roaches.
Cracks and gaps: Poor sealing around toilets, walls, or pipes offers perfect hiding spots.
Stat: In urban areas like Kuala Lumpur, 60% of reported indoor cockroach infestations start in wet areas like toilets and kitchens.
Common Species of Toilet Cockroaches in Malaysia
Which types are hiding in your bathroom?
American Cockroach (Periplaneta americana)
Large, reddish-brown, often crawls out from drains
German Cockroach (Blattella germanica)
Small, fast-moving, prefers damp cracks and under sinks
Oriental Cockroach (Blatta orientalis)
Dark brown or black, thrives in sewer systems and drains
Knowing the species helps identify where they're hiding and what methods to use.
Health Risks of Toilet Cockroach Infestations
Cockroaches in the toilet aren't just disgusting — they’re dangerous
Cockroaches are known carriers of harmful pathogens. When they crawl through sewers and toilets, they can bring bacteria into your home.
Main health risks include:
Salmonella & E. coli: Spread by cockroach droppings and surface contact
Allergens: Shed skins and droppings can trigger asthma, especially in children
Dysentery & cholera: Can be transmitted via contaminated toilet surfaces
Tip: Always disinfect surfaces and wash hands thoroughly after spotting cockroaches.
How to Get Rid of Cockroaches in Your Toilet
Safe and proven pest control methods for Malaysian households
1. Seal all drain openings Install drain covers or one-way valves on floor traps and sinkholes.
2. Eliminate moisture Fix leaking pipes and improve ventilation in bathrooms.
3. Clean regularly Remove hair, grime, and soap scum. Use baking soda and vinegar in drains.
4. Use cockroach gel baits Apply behind toilets, under sinks, and along pipe routes. Brands like Combat and Advion are effective.
If the infestation persists, it’s best to call a licensed cockroach exterminator in Malaysia for long-term elimination.
Landlord negligence causes health risks and damages
In 2023, six tenants in New Zealand were awarded over NZ$12,000 after enduring a severe cockroach infestation in their rental home. Despite the landlord's assurance that pest control would be carried out before move-in, no evidence of treatment was provided. The infestation was so bad that cockroach noises disturbed the tenants' sleep, and the pests damaged two dishwashers.
The Tenancy Tribunal found the landlord failed to maintain the home and provide safe living conditions. In addition to the pest problem, the tenants dealt with faulty appliances, illegal rent increases, and threats of eviction. They eventually received compensation for the landlord’s failure to address both the infestation and essential repairs — a strong reminder of how unresolved pest issues can escalate legally and financially.
Did You Know?
Cockroaches can hold their breath for 40 minutes — that’s how they survive in drains!
A female German cockroach can produce over 30,000 offspring in a year.
Cockroaches are nocturnal — if you see one during the day, it could mean a large infestation.
Conclusion
Don’t let cockroaches turn your bathroom into a breeding ground
Cockroaches in your toilet can spread diseases and create an unhygienic environment for your family. While DIY steps can help reduce the problem, professional pest control ensures complete elimination — especially in high-density Malaysian homes.
FAQ
1. Why do cockroaches come out of the toilet?
They enter through dry drains or pipes, seeking water and shelter in the bathroom.
2. Can I use bleach to kill toilet cockroaches?
Bleach may kill some roaches but doesn’t eliminate the nest or stop reinfestation.
3. Are cockroaches in the toilet dangerous?
Yes, they can carry bacteria and contaminate surfaces, increasing infection risks.
4. What’s the best way to block cockroach access through drains?
Use drain covers or install one-way rubber drain valves available in local hardware stores.
5. How much does cockroach pest control cost in Malaysia?
Prices range from RM150 to RM300 per session, depending on infestation size and property type.
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