Nazi dictator Adolph Hitler reportedly had a very small penis and one ball, a new DNA analysis obtained from a sample on the sofa where he died has shown.

According to a new documentary showcasing the biological makeup of Mr Hitler, DNA results showed that the deceased, an Austrian-born German leader, may have suffered from a genetic disorder known as Kallmann syndrome.

The condition is characterised by disrupting the normal development of sexual organs and the inhibition of the healthy progression of puberty. This meant that Mr Hitler had a 1-in-10 chance of having a micropenis, according to the Times.

A micropenis is defined as a phallus measuring less than two inches.

The Jerusalem Post reported that the DNA analysis was based on a fabric sample containing Mr Hitler’s blood that was cut by Colonel Roswell Rosengren from the chair on which the dictator killed himself in 1945.

Eighty years later, the study conducted on the sample by a group of scientists led by Professor Turi King suggested a strong possibility of Mr Hitler having a small penis and one ball, confirming the years-long rumour that the Nazi Party leader had sexual problems.

“If he was to look at his own genetic results, he would have almost certainly have sent himself to the gas chambers,” Mr King said.

The full details of Mr Hitler’s genetic history would be contained in a yet-to-be-released film titled “Hitler’s DNA: A Dictator’s Masterplan.”