Is it normal to still have fleas after 3 months?

By Sarah

November 5, 2025
1 MIN READ

It is not unusual to still see fleas after three months of treatment, but it can indicate that the infestation has not been fully eradicated.

Fleas have a complex life cycle consisting of four stages: egg, larvae, pupae, and adult. While adult fleas can be killed relatively quickly, it's the immature stages that can survive in carpets, bedding, and cracks in floors for weeks or even months. Under the right conditions, flea eggs can continue hatching and emerging as new adults long after the initial treatment.

If you are still noticing fleas after three months, it often means that while the adult fleas have been reduced, the environment is still harbouring developing stages. This is common when regular vacuuming, washing pet bedding, and treating household areas are not done consistently. Fleas can also re-enter your home if your pet goes outdoors or comes into contact with untreated animals or infested environments.

To fully eliminate fleas, it’s important to maintain an integrated approach.

Use ongoing flea preventives, like Itch Flea Treatment for Dogs or Itch Flea Treatment for Cats on all pets year-round, even during colder months.
Vacuum frequently and dispose of the vacuum bag immediately. After your infestation, vacuuming every day for seven days at least is crucial.
Wash all bedding, rugs, and pet items in hot water weekly. Make sure its 60 degrees Celsius or hotter!
After cleaning your home, it's important to treat your space with a household flea spray like the Itch Flea House Spray for Homes which targets all flea life stages.

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Is it normal to still have fleas after 3 months?