Do Silverfish Bite? Debunking the Myth and Revealing the Facts

Silverfish are common household pests that can often be found lurking in dark corners or in areas with high humidity. These creepy-looking insects are sometimes mistaken for other pests such as centipedes or firebrats.

One question that often comes up when it comes to silverfish is whether or not they can bite humans. The short answer is no, silverfish do not bite humans. However, they can still cause issues such as triggering allergies or damaging paper and fabric materials.

In this article, we will explore more about silverfish and their habits, as well as provide tips on how to prevent infestations and minimize contact with these pests.

Related Article – Where Do Silverfish Come From?

What Are Silverfish?

Silverfish are small, wingless insects that are commonly found in homes and other buildings. They have a distinct, silvery appearance that is caused by their shiny, metallic scales. These scales cover their long, slender bodies, which are typically between 1/2 and 1 inch in length.

What Are Silverfish (Rentokil Pest Control Ireland)

Silverfish are primarily nocturnal creatures and are known for their fast, darting movements. They are most active at night and can often be found scurrying across floors, walls, and other surfaces in search of food and shelter.

They are attracted to dark, damp areas and are commonly found in bathrooms, kitchens, basements, and other areas of the home where moisture is present.

In addition to their distinctive appearance and behavior, silverfish are also known for their ability to survive in a wide range of environments. They can tolerate extreme temperatures and are able to go without food for long periods of time.

This adaptability, combined with their fast movements and love of dark, damp spaces, makes them a formidable pest that can be difficult to control.

You May Also Like – What Bugs Bleed When You Kill Them?

What Attracts Silverfish to Your Home?

Silverfish are attracted to certain environmental conditions and factors that are often found in homes. They thrive in warm, humid environments, making bathrooms, kitchens, and laundry rooms prime targets for infestations.

Silverfish In Your House (Rentokil Pest Control Ireland)

One of the main things that attract silverfish to homes is moisture. They need a humid environment to survive and will seek out areas with high levels of moisture. Leaky pipes, damp basements, and areas with poor ventilation are all ideal habitats for silverfish.

In addition to moisture, silverfish are also attracted to certain types of food. They feed on starchy materials, such as paper, glue, and fabric, making them a common problem in homes with book collections or wallpaper.

How Did I Get Silverfish? (Solutions Pest & Lawn)

Silverfish are also known to be attracted to darkness and quiet environments. They are nocturnal creatures that prefer to stay hidden during the day and will often hide in dark, quiet areas such as closets, under furniture, and behind appliances.

How To Know If You Have a Silverfish Infestation?

Silverfish are known for their nocturnal habits and love for dark, damp places. If you suspect you have a silverfish infestation, there are several signs you can look out for:

Do Silverfish Bite?: How To Know If You Have a Silverfish Infestation?
  • Silverfish sightings: Seeing a silverfish crawling around your home is the most obvious sign of an infestation. Keep an eye out for their long, slender bodies and distinctive silvery-grey color.
  • Droppings: Silverfish droppings are small, black specks that resemble pepper or coffee grounds. They are often found near areas where silverfish are likely to hide, such as in basements, attics, and storage areas.
  • Yellow stains: Silverfish produce yellow stains on fabric and paper products that they infest. Look for these stains on books, wallpaper, and clothing.
  • Holes: Silverfish can create irregularly shaped holes in wallpaper, cardboard boxes, and other materials they infest.
  • Shed skin: As silverfish grow, they shed their skin, leaving behind tiny, translucent skins that can accumulate in infested areas.

If you notice any of these signs, it’s likely that you have a silverfish infestation. It’s important to take action to get rid of them before they cause significant damage to your home.

Do Silverfish Bite or Sting?

The answer is simple: silverfish do not bite or sting humans. 

These insects may look creepy with their scaly bodies and wiggly antennae, but they are not known to carry diseases or cause harm to people. In fact, silverfish are harmless to humans, and they generally prefer to hide in dark, moist areas where they can feed on starchy substances like wallpaper glue, book bindings, and clothing fibers.

While silverfish do not bite humans, they do have sharp mandibles that they use to scrape away at their food sources. These mandibles, which are located in the front of their heads, are used to break down and consume their food, which consists primarily of carbohydrates and proteins.

Related Article – Do Thrips Bite? The Truth about Thrips’ Biting Habits

However, these mandibles are not strong enough to pierce human skin, so there is no risk of a silverfish biting or attacking a person.

In rare cases, a silverfish may come into contact with a human and may even crawl onto its skin. However, this is usually accidental and the insect will quickly scurry away once it realizes that it is not on a food source.

So, if you see a silverfish in your home, don’t panic – it’s just looking for a meal, not a bite.

What Happens When a Silverfish Bites You?

If a silverfish happens to bite you, there's no need to worry. Silverfish are not known to transmit diseases or cause any major health problems in humans. Their bites are usually harmless and don't require any special treatment. 

Most people will not realize they’ve taken a silverfish bite because symptoms might not occur at all. However, if you do notice any redness or itching at the site of the bite, you can simply clean the area with soap and water and apply a mild antiseptic cream to prevent infection.

Related Article – Can Bed Bugs Get in Your Private Parts?

It’s important to note that silverfish bites are rare and often mistaken for bites from other insects or allergic reactions.

If you have a silverfish infestation in your home and wake up with red marks on your skin, it’s possible they might be caused by the silverfish, but the source of the marking might be contact with another bug or an allergic reaction to something different than insects.

What Does a Silverfish Bite Feel Like?

If you’re one of the rare few who experience a silverfish bite, you might feel a sharp, momentary pain similar to an itch. Some people have reported feeling a slight burning sensation or itchiness that doesn’t last long.

In more severe cases, some individuals may experience nose inflammation or respiratory allergy symptoms, although this is very uncommon. The good news is that silverfish bites are usually harmless and don’t cause any long-term health problems.

If you do experience any discomfort or redness at the site of the bite, you can apply a mild antiseptic cream to prevent infection and alleviate any minor symptoms.

Can Silverfish Cause Rashes?

Do silverfish bite? :Can Silverfish Cause Rashes?

Silverfish can cause rashes in some people, especially if they are allergic to them. This is usually a result of inhaling shed exoskeletons or being bitten by insects.

Allergies to silverfish are quite common and can manifest as bronchial asthma, allergic rhinitis, and respiratory problems in highly sensitive individuals.

The shed skins and feces of silverfish have been known to trigger allergic reactions in some people, particularly those who are allergic to shellfish and dust mites.

An allergic reaction to silverfish can cause coughing, sneezing, a runny or congested nose, puffy, red, irritated eyes, and itchy, inflamed skin.

However, it’s worth noting that silverfish are not known to be aggressive, and bites are not a common occurrence.

You May Also Like – 8 Bugs That Look Like Lint and Bite

Are Silverfish Harmful to Pets?

Silverfish are not harmful to pets as they do not cause any harm or damage to them. They are not known to crawl into pets’ fur like fleas or ticks, and they do not carry any pathogens that can transmit disease to pets.

Silverfish cause damage to household items like wallpaper, books, and other paper items, not pets. Therefore, if you notice silverfish in your home, you don’t have to worry about your pets. Silverfish are not dangerous for pets and do not harm them.

Myths About Silverfish Bites

There are many myths about silverfish bites, but the truth is that silverfish do not typically bite humans. Here are some common myths about silverfish bites:

  • Silverfish bites are common: Silverfish bites are actually quite rare since silverfish do not typically bite humans. They are more likely to run away when disturbed or threatened rather than bite.
  • Silverfish can bite through human skin: This is not true. Silverfish do not have the physical ability to bite through human skin.
  • Silverfish bites are poisonous: silverfish do not have venom or any poisonous substance. Their bites are not toxic and do not pose any harm to humans or animals.
  • Silverfish bites can transmit diseases: Silverfish are not known to transmit diseases to humans or pets. Their bites are usually harmless and do not require any special treatment.
  • Silverfish bites cause severe pain: Silverfish bites may cause some discomfort or a sharp pain similar to an itch, but the sensation typically goes away quickly and does not last long.
You May Also Like – 14 Small Tiny Brown Bugs In House
So silverfish bites are not poisonous, do not transmit diseases, do not cause severe pain, and are relatively rare. These myths are false, and there is no need to worry about silverfish bites.

How to Prevent Silverfish Bites?

As I mentioned earlier, silverfish do not typically bite humans, so there is no specific way to prevent silverfish bites. However, if you are concerned about silverfish in your home, here are some steps you can take to prevent their presence and minimize the risk of encountering them:

How to Get Rid of Silverfish? (Solutions Pest & Lawn)

Reduce humidity

To prevent silverfish infestations, it’s important to reduce the humidity levels in your home. Silverfish thrive in damp environments, so using a dehumidifier or fixing any water leaks or moisture problems can help to keep them away.

Keep your home clean

One of the most effective ways to prevent silverfish infestations and bites is by keeping your home clean. Regularly vacuuming carpets, sweeping floors, and dusting surfaces can help remove the dust, debris, and food particles that silverfish feed on.

Additionally, cleaning up any spills or crumbs immediately can prevent silverfish from being attracted to the area.

Store food properly

To prevent silverfish infestations, it’s important to store food properly. Make sure all food items are stored in airtight containers or in the refrigerator. Avoid leaving any food out in the open, especially overnight.

This will help to eliminate potential food sources that might attract silverfish.

Use natural repellents

Using natural repellents can also be an effective way to prevent silverfish infestations. Some common natural repellents include cedarwood, cloves, and lavender. These can be used in the form of sachets or essential oils, which can be placed in closets, drawers, and other areas where silverfish are likely to be present.

Additionally, diatomaceous earth, a natural substance made from fossilized remains of tiny aquatic organisms, can also be sprinkled in areas where silverfish are present. This substance works by dehydrating and killing silverfish and other pests.

Seal entry points

Sealing entry points is another effective way to prevent silverfish infestations. These insects can enter your home through small cracks and gaps, so sealing them off can help keep them out.

Check around doors, windows, baseboards, and any other openings where silverfish could enter. Use caulk, weatherstripping, or other sealants to close up these gaps and prevent silverfish from getting inside.

You May Also Like – 12 Tiny Black Bugs on Window Sill | Quick Fixes

Final Thoughts

Silverfish are not a danger to humans and do not bite. Although they can be a nuisance and cause damage to paper-based materials, they do not pose any direct threat to our health or well-being.

By taking preventative measures such as reducing humidity levels, sealing entry points, and keeping our homes clean, we can avoid silverfish infestations and minimize any potential damage. It’s important to understand the facts about silverfish to dispel any myths and avoid any unwarranted concerns.


Do silverfish bite cats?

No, silverfish don’t typically bite cats or other pets. Silverfish are not known to be aggressive and their diet mainly consists of starchy materials such as paper, wallpaper glue, and fabrics.

Do silverfish bite dogs?

Silverfish don’t usually bite dogs or other pets. They are not attracted to animals and prefer to feed on starchy items like paper and fabrics.

Can silverfish enter the human body?

Silverfish cannot enter the human body. They are small insects that typically measure between 0.5 to 1 inch in length and their bodies are not designed to penetrate human skin.

Can silverfish live in your hair?

No, silverfish cannot live in your hair. These insects prefer to live in dark, moist environments and feed on starchy materials such as paper and fabric.

Do silverfish get into your ears?

It is highly unlikely for silverfish to get into your ears. These insects are not attracted to the human body and their size and body structure make it difficult for them to enter narrow openings like ears.

Resources – (for further reading)

University of Florida – Silverfish – Lepisma saccharina.

UC ANR – Silverfish and Firebrat Management Guidelines–UC IPM

I'm Ernest M Noah, the founder of I have years of experience as an exterminator in Texas and Idaho, and I'm passionate about educating people on how to deal with pest problems effectively and safely.