Do earwigs bite or sting?

The pincers (cerci) on their abdomen look alarming but are mainly used for defense and capturing small prey; earwigs can pinch if handled roughly, but it's rarely more than a minor, momentary irritation, and they aren't venomous, don't spread disease, and pose no real health risk to people.

Why do I find earwigs indoors but never see a real infestation?

That pattern is normal. Earwigs live and reproduce outdoors in moist soil, mulch, and leaf litter, and the ones found inside are usually individuals that wandered in through a gap rather than evidence of an indoor breeding population, since indoor conditions rarely offer the sustained dampness they need to establish long-term.

Will removing mulch from around my foundation help?

Pulling mulch back a short distance from the foundation, or letting the soil surface there dry out between waterings, removes the exact damp, dark microhabitat earwigs use as daytime shelter, which is the condition most closely tied to how many end up near an entry point.

Daniel Brady · NH-Licensed Pesticide Applicator · License #782664

What Attracts Earwigs to Your House?

The usual four

Earwigs aren't pulled toward your house by anything unusual — they want moisture, shelter, and some organic food nearby, the same things that draw them under mulch or leaf litter outdoors. A damp foundation, mulch bed pressed against the wall, or a leaky spot gives them exactly the humid, dark hiding conditions they already prefer.

At a glance

Short answer: Earwigs want moisture, darkness, and something to eat — nothing else is going on.
The verdict: The usual four

What actually brought it here

The attractant verdict

Four possible answers to why this species turned up. Three stay unlit — and that's the argument: the honest answer could have been any of them, and for this species it wasn't.

You didn't — you carried it innothing about your house did this

The belief is wrongthe common answer is counterfactual

Something specifica real, sourced attractant

The usual fourfood · water · warmth · shelter — like almost everything

This is the most common answer in this hub — an answer, not a shortfall.

The verdict on earwigs

The usual four

Earwigs want moisture, darkness, and something to eat — nothing else is going on.

What the internet says

Our own previous page said earwigs are attracted ‘mainly due to moisture, shelter, and food sources’ — accurate, and we're keeping it.

What actually brought it

Consistently damp, dark hiding spots close to the house — mulch beds against the foundation, leaf litter, stacked firewood, damp crawlspaces — combined with decaying plant matter or small insects to feed on. Earwigs are drawn to moisture and darkness far more than to anything about a structure specifically.

“Nothing about an earwig is special. It wants moisture, darkness, and something to eat — and a damp mulch bed against the foundation gives it all three.”

So what actually matters

Water & moistureShelter

The answer

Why it's here, in full

Why moisture and shelter explain the whole story

Earwigs are nocturnal and strongly avoid light and dry conditions, spending the day packed into tight, damp cracks and crevices and emerging at night to feed on decaying plant matter, soft plant tissue, and small insects. A house at ground level next to mulch, dense plantings, leaf litter, or firewood offers the identical humid, dark hiding conditions they'd use anywhere outdoors, and a few individuals commonly wander in through a door threshold or foundation gap without that indicating any real indoor population. Moisture and darkness close to the foundation are what predict earwig activity, not anything about the structure itself.

Did it visit?

How to tell it's actually this species

Real signs only — a species with four honest tells gets four, and stops. Where a sign is weak on its own, we say so.

Earwigs found in damp, dark spots like under mulch, in door thresholds, or inside sink cabinet gaps
Small, ragged, irregular holes in soft plant leaves or flower petals
Could be something else: Similar leaf damage can come from slugs, caterpillars, or other chewing insects; finding earwigs at the site is the stronger confirmation.
A number of earwigs clustering together in a single damp crack or gap during the day

The next question

Want earwigs gone?

This page only answers why it's here. Every removal step for this exact species — what to seal, what to set, what actually works — lives on its own dedicated guide.

See how to get rid of it

Species profile

Two questions, two pages

Here: why it turned up at all — the honest answer, blame removed.
There: the step-by-step removal guide for this exact species.

Already dealing with earwig?

This page is about why it's there. Getting rid of it is covered at /top-diy-methods/earwig.

See removal options (603) 785-0118

Follow-up questions

Frequently asked

Sources(2)

[1]
UC Statewide IPM Program — Earwigs
Earwig moisture and darkness requirements and nocturnal feeding habits
extensionverified 2026-07-17
[2]
Ohioline (Ohio State University Extension) — Earwigs (HYG-2068)
Earwig habitat preference for moist, dark hiding spots near structures
extensionverified 2026-07-17

Written & reviewed by

Verified

Daniel Brady

NH-Licensed Pesticide Applicator · License #782664 (NHDAMF, RSA 430)

Daniel Brady is the New Hampshire–licensed applicator behind Anchor Pest Services, a family-owned pest control company serving the Manchester area since 2017.

Verify license

Last updated Jul 2026

Food, water, warmth, shelter — the usual four

If it's already inside, we handle the rest

Same-day inspections across southern and central New Hampshire.

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NH commercial applicator #782664, category F1
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