Inspect Your House Immediately The pest typically comes out when no one is around so when you're asleep, that's the time they attack your house to look for food and water. Seeing a single cockroach is an indication that you might have several cockroaches at home so when you see one, immediately inspect your home.

According to the World Health Organization, cockroaches can carry harmful diseases such as dysentery, cholera, leprosy, and more. Therefore, if you spot one of these brown creepy crawlers in your home, it's best to kill it right away.

If you spot one, odds are there are a few others lurking nearby, in dark corners or cracks and crevices and they could be fast on their way to a full blown infestation. Cockroaches are dangerous to humans – they carry bacteria on their bodies and their feet, contaminating any surfaces they come into contact with.

They may enter homes in search of shelter, food, and water. Neighboring infestations: If neighboring homes or buildings have cockroach infestations, these pests may migrate to nearby areas, including your home. Cockroaches are known to move easily between structures through cracks, crevices, and utility lines.