Dog fleas, Ctenocephalides canis, can bite humans, but they do not typically survive or live on humans long-term. Dog fleas prefer to live on dogs and other animals with fur, where they can easily hide and lay eggs. When they bite humans, it’s usually for a quick meal and not as a permanent host.
However, if a dog flea infestation is severe, they may occasionally land on humans and cause bites, especially around the ankles and legs. While they can’t sustain themselves on human blood alone, they may persist until their preferred animal hosts are available. In cases of infestation, it’s essential to treat pets and the home environment to eliminate all stages of flea life.