Can Fleas Survive on Human Blood?

Fleas are ectoparasites. They spend most of their time living on their host animals and can often be found around houses and in pet bedding. Their eggs and larvae are found in cracks and crevices of the floor and their pupae are found in the nests of their host animals. Adult fleas feed on the blood of their hosts and other animals. They also feed on the dried blood found in feces and on the molts of other larvae.

Fleas are often associated with pet animals and wild animals, but fleas also live on people. In fact, there are more than 2,000 species of fleas. Many of these species can survive on human blood and can even be found in farming areas. Fleas have a long history of causing disease and death.

Fleas feed on human blood through their mouth, which is made up of three parts. The mouth is designed to pierce the skin and cut a blood vessel. Once inside, the flea will suck the blood. It will then inject anticoagulant fluid into the blood.

Although they can survive on human blood, fleas cannot live on human blood for long. Fleas seek humans only when there is no other food source available. They will usually only bite humans once or twice before they move on to another host. Their primary hosts are pets, which is why they are the most common source of annoyance for pet owners.