Adolf Hitler may have suffered from a genetic disorder that stunted his sexual development and left him with a micro-penis.

A new DNA analysis has revealed that the Nazi dictator carried Kallmann syndrome, a rare condition that disrupts puberty and testosterone production, often leading to undescended testicles and underdeveloped genitals.

According to the findings, Hitler had around a one-in-10 chance of possessing a micro-penis — lending surprising truth to the wartime song Hitler Has Only Got One Ball.

The analysis, carried out by a team led by Professor Turi King, best known for identifying the remains of Richard III, also disproves long-standing rumours that Hitler had Jewish ancestry.

University of Bath expert Professor King said: "If he was to look at his own genetic results, he

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