Why are there cockroaches at home? What caused it?

Hygienic reasons: cockroaches appear at home because the hygiene at home is not cleaned in time, the environmental sanitation is not clean, there is a humid environment, and ventilation and dehumidification are not in place, which will attract cockroaches to survive.

Environmental structure: Where there are many gaps, whether in the gaps of tables or cabinets, it is easy to become a hiding place for cockroaches.

Temperature reason: A warm climate can make cockroaches live easily, so there are more cockroaches.

Adequate food: Adequate food is a necessary condition for cockroaches to survive, and the place where food is piled up also provides a hotbed for cockroaches to survive.