Earwigs look like something out of a nightmare, but are really quite harmless to humans. They can be an irritating pest, as they will use the warm damp spots of your home to create nests. However, our experts can remove them if you find them in your home. Adult earwigs will have large pincers, and usually measure just under an inch. The pincers on a male will be curved, and on a female straight. While they are mostly harmless to humans, they can be harmful to some house plants if allowed to thrive.