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Penis Size Study: Finger Length Ratio Indicator Of Penis Size

First Posted: 07/05/11 03:59 PM ET Updated: 09/04/11 06:12 AM ET

Penis Size Study

Researchers in South Korea think they've finally been able to crack the code that indicates the size of a man's penis, and it comes down to a ratio of finger length on the right hand.

A new study published in the Asian Journal of Andrology says that the lower the ratio between the length of a man's index finger and the length of his ring finger, the longer his penis.

From Reuters:

"According to our data ... the shorter index (second) finger than ring (fourth) finger you have, the longer stretched penile length you have," wrote Tae Beom Kim at the urology department of Gachon University Gil Hospital in Incheon, South Korea, in reply to questions from Reuters.

Previous studies have shown strong evidence that prenatal testosterone may determine finger development as well as penile length, a relationship that Kim and his colleagues launched a study to focus on.

Researchers at Cachon University in Incheon, Korea studied 144 men over the age of 20 who were getting urological surgery. One researcher measured the index and ring fingers on each patient's right hand. Another researcher then measured the "stretched" and flaccid lengths of the patients' penises after anesthesia.

The researchers "suggest that the digit ratio can predict adult penile size and that the effects of prenatal testosterone may in part explain the differences in adult penile length," according to the abstract of the study.

News of this study will most likely have men all over examining their right hands all day today.

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Filed by Timothy Stenovec  |