Earwigs, often called “pincher bugs,” are common in gardens and sometimes indoors. These insects can appear intimidating, leading many to wonder if they pose a threat to humans. Despite their appearance, earwigs are harmless and do not carry diseases that affect people. They are primarily nocturnal and seek dark, moist environments, often entering homes when outdoor conditions become too dry or harsh.
The Earwig’s Pinch
The most noticeable feature of an earwig is the pair of pincers, known as cerci, at the end of its abdomen. These cerci are used for defense against predators, capturing prey, and aiding in mating rituals. Male earwigs have more curved pincers, while females possess straighter ones.
When an earwig feels threatened or is handled, it may use its pincers in self-defense. The sensation of an earwig’s pinch is a mild, startling squeeze, often compared to a small pinch from fingers. While it can cause minor discomfort, it rarely breaks the skin. If skin is broken, it results in two small, red marks.
Earwigs are not venomous and do not sting or bite, as they lack the mouthparts for biting humans. The common misconception that earwigs burrow into ears or brains is a myth, likely stemming from their name, which originates from Old English words related to ears and insects. Any discomfort from a pinch is localized and short-lived, with no long-term health complications expected.
Managing Earwigs
If an earwig does pinch you, clean the affected area. Washing the skin thoroughly with soap and warm water is sufficient. If the skin is broken, applying an antibacterial cream or gel can help prevent infection, as earwigs inhabit environments like soil where bacteria may be present.
Preventing earwigs from entering your home involves reducing moisture and eliminating attractive hiding spots. Sealing cracks and gaps around foundations, windows, and doors blocks entry points. Addressing leaky faucets, ensuring proper drainage, and using dehumidifiers in damp areas like basements or crawl spaces reduces the moisture earwigs seek. Removing outdoor debris such as leaf piles, wood stacks, and excessive mulch from around the home’s foundation also helps deter them. These measures create an environment less appealing to earwigs, encouraging them to remain outdoors.