Why do I have fleas when I have no pets? Because fleas do not need a pet in your home to get in. They come from stray cats around the house, from mice, or from a previous occupant who kept animals, and sometimes with second-hand furniture or carpet. With no animal around, they bite people.
Where do the fleas come from?
- Stray cats: they sleep in the yard, on the roof or under the stairs and leave eggs and larvae.
- Mice and rats: they carry fleas into storerooms and ceilings.
- The previous occupant: if they had a cat or dog, fleas stay in carpets and cracks.
- A visiting pet: a guest's cat for one day is enough.
- Second-hand furniture and carpet from a home with animals.
- Your clothes: they may jump on you in an infested place and come in with you.
Why do they appear suddenly in an empty house?
A flea stays inside a cocoon in carpets and cracks for months without feeding. Once it senses movement and warmth it emerges all at once. That is why many people get bitten in the first week in a house that was closed up.
How to confirm they are fleas
- Bites: small red dots around the ankles and lower legs, very itchy.
- White sock test: wear long white socks and walk on the carpet; black specks jump onto them.
- A dish of soapy water under a small lamp at night; you find them in it in the morning.
- Black specks like pepper in the carpet that turn red when wet.
Where do they hide?
| Place | What is there |
|---|---|
| Rugs and carpet | Eggs, larvae and cocoons |
| Floor cracks and under skirting | Larvae |
| Under sofas and beds | Adult fleas waiting |
| The yard and where cats sleep | The main source |
How to get rid of them
- Vacuum daily for two weeks and empty the bag outside the house.
- Wash bedding and blankets in hot water.
- Apply a residual insecticide to floors, carpets, the base of walls and under furniture.
- Treat the yard and places where cats rest.
- Cut the source: keep stray cats out and control mice.
- Re-treat after two weeks, as cocoons hatch after the first treatment.
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Fleas without pets FAQs
Do fleas live on people?
No. They bite and drop off; they do not live in hair or lay eggs on you. But they keep biting as long as they are in the house.
How long do fleas live without an animal?
Adults last days to two weeks without blood, but those inside a cocoon wait for months.
Do they go away on their own?
Usually not. As long as a source such as yard cats or mice is nearby, they return.