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The relation between sexual orientation and penile size.

A F Bogaert¹, S Hershberger

¹Brock University, St. Catharines, Canada. tbogaert@spartan.ac.brocku.ca

Archives of Sexual Behavior

|July 20, 1999

Summary

Homosexual men reported larger penile dimensions than heterosexual men in a large Kinsey Institute study. These findings may suggest biological influences on sexual orientation development.

Area of Science:

Human sexuality research
Biological psychology
Reproductive health

Background:

Understanding the biological underpinnings of sexual orientation is crucial.
Previous research has explored potential links between prenatal factors and sexual orientation.
Penile dimensions have been an area of interest in relation to sexual characteristics.

Purpose of the Study:

To investigate the relationship between sexual orientation and penile dimensions.
To analyze data from a large historical sample to identify potential correlations.
To explore biological explanations for observed differences.

Main Methods:

Analysis of data from 5122 men interviewed by the Kinsey Institute (1938-1963).
Classification of subjects into homosexual (n=935) and heterosexual (n=4187) groups.

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Assessment of penile dimensions using five measures of length and circumference from Kinsey's protocol.

Main Results:

Homosexual men reported significantly larger penile length and circumference compared to heterosexual men across all five measures.
Statistical analysis revealed consistent differences between the two groups.
No other demographic or physical data were analyzed in this specific context.

Conclusions:

The study suggests a correlation between higher penile dimensions and homosexual orientation in men.
Findings may support theories involving prenatal hormonal influences or other biological mechanisms affecting sexual orientation.
Further research is warranted to explore the complex interplay of biology and sexual orientation.