There are several insect and mite pests which affect people. Some insects, like head lice, and mites, like scabies, live on the human body. Others like bed bugs and fleas do not stay on a person for any length of time but can be found living in human dwellings. Most of these insect and mites bite people to obtain a blood meal. Although these insects and mites usually pose no serious health risk, they can be a nuisance.