Adolf Hitler’s manhood is under question by a German university professor, debunking the dictator’s claim that his missing testicle is the result of a World War I shrapnel hit. According to medical records, Hitler’s right testicle was undescended.

The condition is also known as right-side cryptorchidism. According to the Weill Cornell Medical College’s Department of Urology, the condition is often common in boys who are 5 to 6 years old. The condition is attributed to a hyperactive cremaster muscle reflex.

The department recommends hormonal work-up for boys below 9 who have bilateral undescended testes or when both testicles are undescended. Treatment options include surgery and prescription of human chorionic gonadotropin (HCG) to stimulate the Leydig cells of the testicle to produce male hormones which is injected several times per week over several weeks, although HCG treatment has a low success rate compared to surgery.

Dr Josef Steiner Brin, the physician of the prison where Hitler was detained after he failed in his power grab attempt, performed a physical exam on the dictator in 1923. While Brin found Hitler healthy and strong, he noted that the fallen ruler’s testicle did not properly descend.

The medical records of the prison surfaced in a 2010 auction, but the documents were seized by the Bavarian government and recently reviewed, according to Professor Peter Fleischmann of the Erlangen-Nuremberg University, reports the New York Post. Fleischmann opines that Hitler’s testicle was probably stunted.

But it was not only the dictator who lied about his condition. Eduard Bloch, the childhood doctor or Hitler, told American interrogators in 1943 that Nazi leader’s testicles were completely normal.

The medical condition has led British troops and even schoolchildren to mock the dictator by singing, “Hitler has only got one ball.”

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