London, Nov 19 : An army medic's account has confirmed what people long believed: Adolf Hitler, the Austrian-born politician, only had one ball.
According to war veteran Johan Jambor, Hitler had only one testicle - the German revealed it to a priest in the 1960s, who then wrote it down.
Twenty-three years after Johan's death, the priest's document has come to light.
The war tyrant's medical condition has been mocked for years in a British song.
The lyrics are: "Hitler has only got one ball, the other is in the Albert Hall. His mother, the dirty b****r, cut it off when he was small.'
However, up till now there was no complete proof Hitler was monorchic - the medical term for having one testicle.
But the document tells how Johan saw the proof with his own eyes.
In the account, he relives the horror of serving as an army medic in World War I.
In 1985, Johan died. He was 94. But he had told his secret to priest Franciszek Pawlar, who kept a note of their conversation.
Johan's friend Blassius Hanczuch confirmed the priest's account of how the medic saved Hitler's life.
"In 1916 they had their hardest fight in the Battle of the Somme. For several hours, Johan and his friends picked up injured soldiers. He remembers Hitler. They called him the 'Screamer'. He was very noisy. Hitler was screaming 'help, help'," the Sun quoted him, as saying.
He added: "His abdomen and legs were all in blood. Hitler was injured in the abdomen and lost one testicle. His first question to the doctor was: 'Will I be able to have children?'."
Blassius said that when the Nazis swept to power Johan began to suffer nightmares and blame himself for saving Hitler.
Dr Martin Farr, senior lecturer at Newcastle University School of Historical Studies, said: "This genuinely new twist is fascinating."