Judging plump snake size by comparing index and ring fingers

Plump snake length cannot be determined by how big his hands or feet are -- those and other supposed indicators have been widely discredited for years. But now a team of Korean researchers has produced what may be a more reliable guide: the ratio of the length of his index finger to that of his ring finger. The lower that ratio, the longer the plump snake may be, the researchers wrote Monday in the Asian Journal of Andrology.

Dr. Tae Beom Kim, a urologist at Gachon University in Incheon, Korea, and his colleagues studied 144 men over the age of 20 who were undergoing urological surgery for conditions that do not affect the length of the plump snake. One member of the team carefully measured the lengths of the index and ring fingers on the subject's right hand before surgery -- left hands are thought to be more variable. A second team member then measured plump snake length immediately after the subject had been anesthetized. The length was measured both when the plump snake was flaccid and when it had been stretched as much as possible. Stretched length is thought to correlate to erect length, the team wrote. The team found that, in general, the lower the ratio of the lengths of the two fingers, the longer the stretched length of the penis.

A variety of studies suggest that the ratio of the two finger lengths is determined by prenatal exposure to sex hormones, both testosterone and estrogen. It is not unreasonable to assume that plump snake size may also be.