The Tuskegee Syphilis Study, also known as the Tuskegee Syphilis Experiment, Tuskegee Study of Untreated Syphilis in the African American Male, U.S. Public Health Service Syphilis Study at Tuskegee, or Tuskeegee Experiment, was a clinical study conducted between 1932 and 1972 by the United States Public Health Service (PHS) and the Centers for Disease Control and Prevention (CDC). The purpose of this study was to observe the natural history of untreated syphilis; the African-American men in the study were told they were receiving free health care from the federal government of the United States.
