Will Fleas Die On Their Own? Similar Questions Answered!

Fleas are pesky little creatures that are notorious for jumping from one animal to another, and they can be very difficult to treat.

Various methods for getting rid of fleas have been devised, but people are still left with many questions about these tiny insects. Will fleas die on their own?

If the fleas are still feeding on the host, there’s no way for them to die naturally. However, if there are no hosts to feed on, fleas will die from starvation.

Adult fleas can die in as little as two days, baby fleas can last up to 7 days, but larvae may survive up to 9 months without a host as they simply enter dormancy to survive.

How Long Can Adult Fleas Survive Without a Host?

Fleas are parasitic creatures – they feed on hosts for them to live. Adult fleas tend to develop a preference for one particular host animal, but they will happily feed on other animals if their preferred host is unavailable.

This means that if there are no hosts around, the fleas will look for another host, and if they can’t find one, they’ll eventually die from starvation.

fleas dog treatment

A flea acclimated to animal blood can survive for about 48 to 72 hours without a host.

If you have a pet that’s been treated for fleas, you can expect the adult fleas to start dying off within a few days.

How Long Do Baby Fleas Survive Without a Host?

Baby fleas, or newly hatched ones, are called larvae. These tiny creatures are about the size of a grain of salt, and they don’t have fully developed mouthparts, so they can’t feed on hosts yet.

Instead, they live off the adults’ waste products and any organic matter they can find in their environment.

Larvae can survive for weeks to nine months without a host – they simply enter a dormant state until a host is available again.

This means that, even if you manage to get rid of all the adult fleas in your home, the larvae can still hatch and start the cycle all over again.

The best way to break the flea life cycle is to use a treatment that targets both adults and larvae.

This will help to ensure that all the fleas in your home are eliminated and that they don’t come back.

Flea Cycle: How Long Do Fleas Live?

Adult fleas typically live for two to three weeks but can survive for up to a year in ideal conditions.

The female flea will lay anywhere from 20 to 50 eggs per day, which hatch within two to 12 days, depending on the temperature and humidity.

Once hatched, the larvae will feed on debris in the environment before spinning a cocoon and pupating. The pupal stage can last anywhere from five days to several months, again depending on conditions.

The cycle can be as short as two weeks in warm, humid conditions. This is why fleas are more prevalent during the summer season. On the other hand, in cooler, drier conditions, it can take up to eight weeks.

Once an adult flea emerges from the cocoon, it will immediately start looking for a host to feed on.

The flea cycle from egg to adult can take as little as two weeks or as long as several months, depending on the conditions.

This is why it’s so important to break the cycle by targeting both adults and larvae. If the flea hasn’t found a host to attach itself to, it can survive on its own for 2 weeks.

Once it has attached and detached from a host, it won’t last more than 72 hours unless it has found a new host to sink its teeth to.

Flea Control: Effective Ways to Get Rid of Fleas

Now that you know how long fleas can survive without a host, you may be wondering how to get rid of them for good.

The best way to break the flea life cycle is to use a treatment that targets both adults and larvae. This will help to ensure that all the fleas in your home are eliminated and that they don’t come back.

Topical Treatments

Topical treatments are applied directly to your pet’s skin and coat. These products typically contain insecticides that kill fleas on contact. Some of the most popular topical treatments include Frontline, Advantage, and Revolution.

Oral Treatments

Oral treatments are one of the most effective ways to get rid of fleas, and they offer several advantages. First, oral treatments are convenient and easy to administer.

Simply give your pet the prescribed dose, and the fleas will start dying off within a few hours. Second, oral treatments are effective against all stages of the flea life cycle, so they will quickly eliminate any existing infestation.

Finally, oral treatments have a long-lasting effect, so you won’t have to treat your pet as often. If you’re looking for an effective way to get rid of fleas, oral treatments are definitely worth considering.


Using a shampoo designed specifically for flea control is one of the quickest and most effective ways to get rid of fleas. The key is to make sure that you choose a shampoo that contains ingredients that will kill fleas and their eggs.

Be sure to read the label carefully to find a product that is safe for your pet and follow the directions carefully.

In most cases, you’ll need to leave the shampoo on for at least five minutes before rinsing it off. With a little patience and persistence

dog with shampoo


Aside from shampoos, sprays are often used along with other methods to get rid of fleas.

Flea sprays usually contain pyrethrins or pyrethroids, which are insecticides that kill fleas on contact. Spraying your pet’s environment is also a good way to help prevent future infestations.

Be sure to spray any areas where your pet sleeps or spends a lot of time, such as beds, couches, and carpeting.

You can also use flea spray on your pet’s coat, but be sure to avoid the face and eyes.

Home Remedies

 A number of common household items can be used to kill fleas, including salt, baking soda, and vinegar.

For example, sprinkling salt on your carpet and leaving it overnight can help to dehydrate and kill fleas. Or you can try making a flea trap by combining vinegar and dish soap in a bowl. Fleas will be attracted to the vinegar, but they will be trapped by the dish soap.

Baking soda mixed with water can also be used as a flea spray. Just be sure to vacuum thoroughly after using any of these home remedies to remove the dead fleas from your carpet.

Final Thoughts

Fleas won’t die on their own, not unless they don’t have a single host they can attach themselves to.

Knowing how fleas are and how parasitic they are, they’ll find the next best thing to sink their teeth into. If there are no pets around, they’ll attach themselves to human hosts.

The best way to get rid of fleas is to use a treatment that targets both adults and larvae.

This will help to ensure that all the fleas in your home are eliminated and that they don’t come back. Some common remedies may include using shampoos, topical flea treatments, and home remedies like vinegar and baking soda.

If you have any questions or concerns, be sure to speak with your veterinarian.