Finding a small, silvery insect darting across your bathroom floor or hiding in a dark corner can be unsettling. This creature is known as a silverfish. While they don’t bite or spread diseases, they can damage books, clothing, wallpaper, and stored food if left unchecked.
What Are Silverfish?
Silverfish are wingless insects with shiny silver scales and a fish-like, wriggling movement. They are nocturnal, meaning they’re most active at night, and they thrive in warm, humid environments such as bathrooms, kitchens, basements, and laundry rooms.
Why Are They in Your Home?
Silverfish are attracted to:
- High humidity and moisture
- Cardboard boxes and old books
- Paper, glue, wallpaper, and fabrics
- Crumbs and starchy foods like flour or cereal
- Dark, undisturbed spaces
Seeing one occasionally isn’t unusual, but frequent sightings may indicate a larger infestation.
Are Silverfish Dangerous?
The good news is that silverfish:
- Do not bite humans or pets
- Do not spread diseases
- Are not poisonous
However, they can:
- Damage books, important documents, and photographs
- Eat holes in clothing and fabrics
- Contaminate dry food with their droppings or shed skins
