Undocumented refers to individuals who are living in a country without legal authorization or documentation. This research area focuses on understanding the experiences, challenges, and contributions of undocumented immigrants in society. Researchers in this field often explore issues related to immigration policies, access to healthcare, education, employment, and social services for undocumented individuals. Additionally, they may examine the impact of undocumented immigration on communities, economies, and the overall social fabric of a country. This research area often involves interdisciplinary approaches, drawing on fields such as sociology, political science, law, and public health.