Dog fleas will come to people. If there are fleas on dogs, the fleas will come to people when they come into close contact with dogs. However, fleas generally do not stay on people for too long and are easily infected. Sweep it to the ground. If you want to prevent fleas from appearing on dogs or people, you need to clean the environment regularly, bathe the dog, deworm it, and comb its hair, which can reduce the number of fleas.