It appears the notorious Second World War song may have been right all along. New evidence has emerged that Adolf Hitler may have suffered from an undescended testicle.
Ever since British soldiers started singing it to the tune of Colonel Bogey, debate has raged over whether there is any truth to the assertion that Hitler was missing a vital appendage.
Now a German historian claims to have discovered incontrovertible proof, in the form of medical records.
In 1923, Hitler was examined by a prison doctor after his arrest following the failure of his first attempt to seize power in the Munich Beer Hall Putsch.
The records of that examination clearly show that Hitler had an undescended testicle on the right side, according to Prof Peter Fleischmann of Erlangen-Nuremberg University.
On November 12, 1923, Hitler had to undergo the indignity of a medical examination on his arrival at Landsberg prison.
The records of that examination were long thought lost, until they surfaced at an auction in 2010.
They were promptly confiscated by the Bavarian government and have only now been properly studied.
Dr Josef Steiner Brin, the prison’s medical officer’s notes record “Adolf Hitler, artist, recently writer” as “healthy and strong” but suffering from “right-side cryptorchidism”.
Cryptorchidism is when the testicle fails to descend properly.
“The testicle was probably stunted,” Prof Fleischman said.
The new findings appear to contradict claims that Hitler lost a testicle to a shrapnel injury in the First World War.
In an account that was only discovered in 2008, Franciszek Pawlar, a Polish priest and amateur historian, claimed a German army medic who treated Hitler after the incident told him about the injury.
They also appear to contradict the account of Hitler’s childhood doctor, Eduard Bloch, who told American interrogators in 1943 the Fuhrer’s genitals were “completely normal”.
In very rare cases, cryptorchidism can develop later in life.
A practising Jew, Dr Bloch stayed in Austria under Hitler’s personal protection until 1940, when he emigrated to the US.
The Soviet autopsy carried out on Hitler’s remains in the Fuhrerbunker after the fall of Berlin found that one testicle was completely missing — although, curiously, it recorded the left testicle as absent.
If Hitler did have an undescended testicle, it could explain why he had no children, as it is often linked to reduced fertility.
It would not necessarily have affected the Fuhrer’s sex life, as there is not generally a link to impotence.
The popular song emerged in 1939 and is thought to have been written by a publicist for the British Council, which was tasked with helping build propaganda that would damage the Nazis.
The commonly-recalled version is an adaptation of the original, which ran: “Göring has only got one ball, Hitler’s [are] so very small, Himmler’s so very similar, And Goebbels has no balls at all.”