A house centipede can cause an instant reaction when it suddenly races across the floor, but despite its unsettling appearance, it is generally far less concerning than it seems. These insects typically avoid people and prefer dark, damp places such as bathrooms, basements, and quiet corners where other small insects are present.

House centipedes are usually active at night and spend much of their time hidden. Although they have venom, it is primarily used to subdue tiny prey, and they are not considered a significant threat to humans. Bites are uncommon because these insects generally try to escape, and when bites do occur, they are typically mild and temporary.

One of their most useful qualities is their role as natural pest hunters. They feed on insects such as cockroaches, spiders, ants, silverfish, and termites, potentially helping reduce other unwanted pests around the home. Their appearance can still be unsettling, but some people choose to relocate them rather than kill them, while reducing moisture and sealing cracks can make homes less attractive to them.