Below are a few of the most important experiments that the doctors performed. These procedures were done without the patient's consent and no anesthetics were used. The prisoners suffered tremendously and most of them died during the experiment, and if they didn't die during it they were killed afterwards so they could review the autopsy.
the aftermath
After all of the camps were liberated the had a trial called the "Nuremberg Doctor Trial". They trialed 23 doctors that were involved in the medical experiments at the camps. The prosecutors at the trial found 16 of the doctors guilty for war crimes and humanity crimes, and 7 of those 16 were hung. The executions took place on June 2, 1948.
In this picture they are pointing gout evidence on a former camp inmate. They had an estimated 1,500 documents given to the American judges to help prove the doctors guilty.