Danish Professor Reveals New Findings in Adolf Hitler’s DNA

A new international DNA analysis reveals previously unknown information about Adolf Hitler’s genetic profile. The analysis shows that Hitler had an unusually high genetic disposition for several neuropsychiatric traits and may have suffered from a rare hormonal developmental disorder. The study, which is presented in a new documentary series on Channel 4 titled Hitler’s DNA: Blueprint of a Dictator, was carried out with contributions from the Department of Biomedicine at Aarhus University.

When Hitler committed suicide in Berlin on April 30, 1945, blood stains were left on a sofa in the bunker beneath the Reich Chancellery. An American officer secured the blood sample, which now forms the basis for the genetic analysis. Professor Ditte Demontis and her research team have used the sample to map parts of Hitler’s genome.

One of the most striking results is that the analysis dispels long-standing myths about Hitler’s supposed Jewish ancestry. Instead, the findings show that he is genetically markedly different from the general population, particularly in relation to psychiatric disorders and brain development conditions.

The researchers have used a so‑called polygenic risk score test to assess Hitler’s genetic disposition. The test summarizes the genetic variants that increase the risk of disorders such as autism, schizophrenia, and bipolar disorder. According to Professor Ditte Demontis, Hitler stands out clearly:

“I was surprised that Adolf Hitler ranks in the top 1 percent for the polygenic score for autism, schizophrenia, and bipolar disorder. None of the 37,000 population‑based individuals scored as highly on all three parameters. He therefore stands out extremely from the general population,” she says.

However, she warns against drawing hasty conclusions based on the genetic findings. A high score is not the same as a diagnosis, she emphasizes:

“I want to strongly underline that the study cannot be used to diagnose the notorious dictator. And that polygenic scores do not say anything about a person’s morals or actions. Making that link is not scientifically valid,” says Ditte Demontis.

Another significant finding is evidence that Hitler may have had Kallmann syndrome — a rare hormonal disorder that can lead to a lack of pubertal development, fertility problems, and difficulties engaging in sexual relationships. This discovery sheds new light on historical speculation about Hitler’s sexuality and his complicated relationships with women.

Professor Ditte Demontis was responsible for the scientific analyses but not the actual DNA sequencing. She was contacted by the British research team led by Professor Turi King, known for her work in forensic genetics and historical DNA research.

“I agreed to help illuminate Adolf Hitler’s genetic profile in terms of disposition for psychiatric conditions because it was important that the work was done scientifically robustly and that the results are communicated correctly,” she says.

She highlights the study’s potential to broaden the understanding of Hitler as a historical figure: “The study expands the understanding of Hitler as a historical figure by also including his biology. It provides a glimpse of how we can apply modern genetic technologies to historical individuals — and it raises important questions about how data should be interpreted responsibly.”