Pincher bugs, formally called earwigs, are harmless insects that wander indoors looking for moisture and dark shelter. They’re one of the most common household invaders, especially in spring and summer, and finding a few inside usually means conditions around your home’s exterior are drawing them close. The good news: they don’t bite, carry no venom, and pose no health risk. Getting rid of them is straightforward once you understand what’s attracting them.
What Pincher Bugs Actually Are
Earwigs earned the nickname “pincher bugs” from the curved forceps (cerci) at the end of their abdomen. They’re small, flat, dark brown insects typically between half an inch and an inch long. Males have curved pincers; females have straighter ones. They’re nocturnal, spending the day hiding in tight, damp spaces and coming out at night to feed on decaying plant material, small insects, and occasionally garden plants.
The name “earwig” comes from the Old English “ear wicga,” roughly meaning “ear creature,” which spawned the long-standing myth that these bugs crawl into your ears and burrow into your brain to lay eggs. This is false. Earwigs have no interest in human ears, and they certainly can’t tunnel into your brain. While there have been rare, incidental cases of an earwig found in someone’s ear (the same way any small bug might end up there), it’s not something they seek out.
Why They’re Coming Inside
Earwigs don’t want to live in your house. They end up indoors almost by accident, drawn toward moisture, coolness, and tight hiding spots. The most common entry scenario starts outside: earwigs congregate in damp areas near your foundation, like under mulch, leaf piles, flower pots, or in clogged gutters. From there, they slip through cracks in door frames, window seals, or foundation gaps, especially on hot, dry nights when they’re searching for humidity.
Inside, you’ll typically find them in bathrooms, kitchens, laundry rooms, and basements. Anywhere with a water source or elevated humidity is attractive to them. If you’re finding more than the occasional straggler, it usually signals excess moisture around or inside your home rather than a true infestation. They can’t breed or sustain a population indoors the way cockroaches or ants can.
Are Pincher Bugs Dangerous?
They are not. Earwigs never bite. If handled or threatened, they may pinch with those rear pincers, but the force is rarely strong enough to break the skin. At most, you’d feel mild discomfort and see slight redness. The pincers contain no venom, so there’s no risk of an allergic reaction or hives.
If a pinch does happen to break the skin, washing with soap and water and applying a basic antibiotic ointment is all that’s needed. In extremely rare cases where a small wound goes completely untreated, a secondary bacterial infection could develop, but this is no different from any minor skin break. Earwigs don’t feed on blood or human flesh, and they don’t transmit diseases.
How to Get Rid of Them
Simple DIY Traps
Oil and soy sauce traps are surprisingly effective. Fill a small container (a yogurt cup, tuna tin, or small jar) about one-third full with water, add two tablespoons of soy sauce, then pour in enough vegetable oil to form a thin layer on the surface. The soy sauce scent attracts earwigs, and the oil layer traps them once they fall in. Place these traps outdoors near woodpiles, garden debris, or along the foundation where earwigs hide during the day. Cover each trap with a propped-up lid or saucer to keep rain out while leaving gaps around the edges for earwigs to crawl under. Check and refresh the traps every few days.
Rolled-up damp newspaper also works as a simple trap. Set a few rolls in problem areas at night, and in the morning, dispose of the whole roll (earwigs and all) in a sealed bag or bucket of soapy water.
Diatomaceous Earth
Food-grade diatomaceous earth is a non-toxic powder that works by damaging the thin, waxy coating on an insect’s body, causing it to dehydrate. Sprinkle it in a thin line along baseboards, door thresholds, and around the foundation exterior. It’s safe around pets and children, but it becomes ineffective once wet, so you’ll need to reapply after rain or cleaning. For indoor use, focus on dry areas where you’ve seen earwigs: under sinks, along bathroom baseboards, or near basement entry points.
Insecticide Options
If traps and diatomaceous earth aren’t enough, organic sprays made from pyrethrins (derived from chrysanthemum flowers) or spinosad (derived from a naturally occurring bacterium) can be applied around entry points and along the foundation perimeter. Both are effective against earwigs while being relatively low-risk for mammals. Stronger chemical sprays containing permethrin or carbaryl are also available, but they can harm beneficial insects like the natural predators that help keep earwig populations in check outdoors, so they’re best reserved as a last resort.
Keeping Them Out Long-Term
The most effective strategy is making your home’s perimeter less inviting. Earwigs need moisture and hiding spots, so removing both dramatically reduces how many get near your walls in the first place.
- Pull mulch and leaf litter back from your foundation. A dry, bare zone of several inches between organic material and your walls eliminates their favorite hiding spot.
- Seal cracks and gaps around doors, windows, pipes, and foundation joints. Pay attention to where utility lines enter the house.
- Clean gutters regularly. Clogged gutters hold moisture right at the roofline and create perfect earwig habitat.
- Redirect water away from the foundation. Fix leaky hose bibs, adjust downspout extensions, and switch to drip irrigation where possible to reduce soil moisture near the house.
- Remove outdoor clutter like stacked boards, boxes, leaf piles, and dense ground cover near the building. Flowerpots sitting directly on the ground are common earwig shelters.
- Reduce indoor humidity with bathroom exhaust fans, dehumidifiers in basements, and by fixing any plumbing leaks. A drier interior gives earwigs no reason to stay even if they slip inside.
Most people who consistently manage exterior moisture and seal entry points see earwig sightings drop to nearly zero within a few weeks. The occasional lone earwig that wanders in can simply be swept up or relocated outside, since it poses no threat and won’t establish a colony in your home.