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This insect often lives in our bathrooms. Is this insect dangerous and why does it occur?

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Absolutely! Here’s a helpful and informative article titled:


🪳 This Insect Often Lives in Our Bathrooms — Is It Dangerous, and Why Does It Occur?

Have you ever flipped on the bathroom light only to see a little creepy crawler dart across the floor or linger near the drain? You’re not alone. One of the most common uninvited guests in bathrooms is the silverfish — a small, fast-moving, and slightly shimmery insect that tends to appear when and where you least expect it.

So what is this bug, why does it love your bathroom, and most importantly — is it dangerous?

Let’s break it down.


🐛 Meet the Culprit: The Silverfish

Silverfish (Lepisma saccharina) are small, wingless insects named for their silvery-gray color and fish-like, wiggly movements. They’ve been around for over 400 million years, making them one of Earth’s oldest insect species!

They typically measure about 1/2 to 1 inch long, and they’re most active at night. You might spot them in:

  • Bathrooms
  • Kitchens
  • Basements
  • Laundry rooms

💦 Why Do Silverfish Love Bathrooms?

Bathrooms provide the perfect environment for silverfish:

  • High humidity — They thrive in moist, humid spaces.
  • Dark corners — They’re nocturnal and love hiding.
  • Food sources — Silverfish feed on starches, sugars, dead skin cells, paper, even toothpaste residue!

A leaky faucet, damp towel, or rarely-cleaned drain can make your bathroom the ideal silverfish haven.


⚠️ Are Silverfish Dangerous?

The good news: Silverfish are not dangerous to humans.
They don’t bite, don’t sting, and don’t carry diseases.