Hand pattern indicates prostate cancer risk.

Area of Science:

• Andrology
• Urology
• Human Biology

Background:

• Digit length ratios are established prenatally.
• These ratios may serve as indicators of prenatal testosterone exposure.

Purpose of the Study:

• To investigate the association between the right-hand digit length ratio (2D:4D) and prostate cancer risk.
• To determine if finger length patterns can serve as a predictive marker for prostate cancer.

Main Methods:

• A case-control study involving 1524 prostate cancer cases and 3044 population-based controls.
• Analysis focused on the right-hand digit length pattern (2D:4D ratio).

Main Results:

• Men with a higher 2D:4D ratio (index finger longer than ring finger) exhibited a 33% reduction in prostate cancer risk (OR 0.67).
• A significant risk reduction of 87% was observed in men under 60 with a higher 2D:4D ratio (OR 0.13).

Conclusions:

• The pattern of finger lengths, specifically the 2D:4D ratio, may function as a simple biomarker for prostate cancer risk.
• A higher 2D:4D ratio is suggestive of a lower risk of prostate cancer.