James Marion Sims was an American physician in the field of surgery. His most famous work was the development of a surgical technique for the repair of vesicovaginal fistula, a severe complication of obstructed childbirth. He is also remembered for inventing the Sims speculum, Sims sigmoid catheter, and the Sims position. Against significant opposition, he established, in New York, the first hospital specifically for women. He was forced out of the hospital he founded because he insisted on treating cancer patients; he played a small role in the creation of the nation's first cancer hospital, which opened after his death.

Numerous experiments which are performed on human test subjects in the United States are considered unethical, because they are performed without the knowledge or informed consent of the test subjects. Such tests have been performed throughout American history, but some of them are ongoing. The experiments include the exposure of humans to many chemical and biological weapons, human radiation experiments, injections of toxic and radioactive chemicals, surgical experiments, interrogation and torture experiments, tests which involve mind-altering substances, and a wide variety of other experiments. Many of these tests are performed on children, the sick, and mentally disabled individuals, often under the guise of "medical treatment". In many of the studies, a large portion of the subjects were poor, racial minorities, or prisoners.