The SS doctors at the Nazi death camps wore black uniforms with a skeleton's head on their hats, the motto Unsere Ehre heisst Treue on their belts and their symbol was the double S-rune. They had sworn eternal faith to and they were his most ruthless henchmen, men often seen as the very personifications of evil.

The camp doctors tortured men, women and children and did medical experiments of unspeakable horror during .

Victims were put into pressure chambers, tested with drugs, castrated, frozen to death. were exposed to experimental surgeries performed without anesthesia, transfusions of blood from one to another, isolation endurance, reaction to various stimuli. The doctors made injections with lethal germs, sex change operations, removal of organs and limbs.