Updated: June 1, 2023

Fleas are tiny, wingless parasites that feed on the blood of mammals and birds. They can cause a range of health problems for both pets and humans, from skin irritation to more serious conditions like anemia and tapeworm infections.

Unfortunately, there are many myths and misconceptions about fleas that can make it difficult for pet owners to effectively protect their furry friends from these pests. In this article, we’ll take a closer look at some of the most common myths about fleas and explore the truth behind them.

Myth: Fleas Only Live on Pets

One of the most pervasive myths about fleas is that they only live on pets like dogs and cats. While it’s true that fleas prefer to feed on animals, they can also survive in human homes and bite humans as well. In fact, fleas can live in carpets, bedding, and furniture for several months without a host, waiting for an opportunity to jump onto a passing animal or person.

This means that even if you don’t have any pets in your home, you could still be at risk for a flea infestation. Regular vacuuming and cleaning can help prevent fleas from taking up residence in your home.

Myth: Fleas Are Easy to Spot

Another common misconception about fleas is that they’re easy to see. However, adult fleas are only about 1/8 inch long and are very fast-moving. They’re also often hidden in fur or clothing, making them difficult to spot.

Additionally, flea eggs and larvae are even smaller and harder to detect. Flea eggs are only about 0.5mm in size and can be nearly invisible to the naked eye. This is why it’s important to take proactive measures to prevent flea infestations, rather than waiting until you see signs of an infestation.

Myth: Flea Collars Are the Best Way to Protect Your Pet

While flea collars can be effective at repelling fleas, they’re not always the best option for all pets. Some pets may be allergic to the chemicals used in flea collars, while others may simply find them uncomfortable to wear.

There are a variety of other flea prevention options available, including topical treatments, oral medications, and natural remedies like essential oils. It’s important to talk to your veterinarian about which option is best for your pet’s individual needs.

Myth: Fleas Only Bite in the Summer

Many people believe that fleas are only a problem during the summer months. While it’s true that fleas thrive in warm, humid environments, they can survive indoors year-round, especially in homes with central heating.

This means that even if it’s cold outside, your pet could still be at risk for flea bites and infestations. Regular flea prevention is important no matter what time of year it is.

Myth: Fleas Can Jump 100 Times Their Own Height

This is one of the most persistent myths about fleas, but it’s actually not true. While fleas are known for their impressive jumping abilities, they can only jump about seven inches high and 13 inches horizontally.

However, this is still an impressive feat considering that fleas are only about the size of a grain of salt. Their powerful hind legs allow them to jump more than 50 times their own body length, which is why they can easily jump from one host to another.


Fleas are a common problem for pet owners, but there are many myths and misconceptions surrounding these tiny pests. By understanding the truth behind these myths, you can better protect your pets and your home from flea infestations. Remember to talk to your veterinarian about the best flea prevention options for your furry friends and stay vigilant about keeping your home clean and flea-free.