Flea Lifecycle: How to Avoid Fleas on Dogs & Cats

Did you know that if your pet gets fleas, the adult fleas that you see are only a small part of the overall problem?

That’s right, the adult fleas on your pet make up only 5% of the whole flea population. The other 95% of the fleas are in your home, still growing up.

The flea lifecycle

Getting to the root of a flea problem is more easily understood when you get a sense of the flea lifecycle.

A single female flea can lay up to 40-50 eggs per day! These eggs fall off your pet around your house, where they undergo several life stages before they become adults and hop back on your pet. This means that even a few adult female fleas can infest your home very quickly with a huge number of immature fleas.

How long do fleas live?

When you consider that immature fleas can take anywhere from three weeks to six months to mature into adults, you can see how problematic flea control can be once fleas gain a foothold in your home. The unpredictable life span of a flea is tricky. If your pet is not on flea medications when these fleas finally reach adulthood (for example, because you thought you had finally beat the flea life cycle), they can infect your home again and restart the cycle.

Pets who are allergic to fleas suffer the most while these fleas mature, since the newly mature fleas can often get in a bite or two before the flea treatment kills them. These allergic pets often need additional medication to help soothe the itchiness while all the fleas in the home are cleared.
Additionally, fleas can also pass other diseases to your pet, like tapeworms, which may require additional management on top of the flea treatment.

How do dogs get fleas? What about my indoor cat—she must be safe?!

Dogs typically get fleas through direct contact with other infested animals or environments where fleas are prevalent, such as parks, kennels or even out for a walk in your neighborhood. Indoor cats are even at risk of getting fleas! Cats can get them when fleas hitch a ride on humans or other pets that go outdoors, or through infested items brought into the home, like used furniture or clothing.

How to avoid fleas on dogs and cats or worse yet, how to avoid a flea infestation

Avoiding a flea infestation or even avoiding fleas on dogs and cats is pretty simple! In contrast to battling a flea infestation, flea prevention is very simple. It requires a once-monthly (sometimes even less!) administration of flea preventives, stopping fleas from ever gaining a foothold in your home in the first place.

Explore our wide selection of veterinarian-approved flea and tick preventives, some of which don’t require a prescription. Start protecting your pet and your home from fleas today! >>