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Related Experiment Videos

Penile erections: shape, angle, and length

J Sparling1

  • 1sparling@mail.unc.edu

Journal of Sex & Marital Therapy
|September 18, 1997
PubMed
Summary
This summary is machine-generated.

This study updates penile erection data for therapists. New findings suggest more downward-curved erections, lower angles, and a higher proportion of shorter penile sizes than previously estimated.

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Area of Science:

  • Human Sexuality
  • Urology
  • Sexual Health

Background:

  • The Kinsey Institute archives provide foundational data on male sexual function.
  • Understanding penile erection characteristics is crucial for therapeutic interventions and sexual health.
  • Previous estimates may require updating based on contemporary data.

Purpose of the Study:

  • To provide an updated description of penile erection characteristics.
  • To establish a credible information base for therapists and researchers.
  • To refine existing data on erection angles, curvature, and length.

Main Methods:

  • Analysis of archived Kinsey Institute data (n=1,484 men).
  • Supplemented with current questionnaire and documentary photo data (n=81 men).

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  • U.S. Census-matched sampling for demographic relevance.

    • Main Results:

    • Kinsey data provided a credible foundation for erection characteristics.
    • Contemporary data suggests a need for moderate increases in specific erection parameters.
    • Identified increased prevalence of downward-curved (n-curved) erections (approx. 15%).
    • Observed more erection angles in lower ranges (at least 25% below horizontal).
    • Found a greater proportion of shorter erections (4.5-5.75 inches, approx. 40%).

    Conclusions:

    • Updated penile erection data refines previous estimates.
    • Findings provide a more accurate basis for understanding erection variability.
    • This information is valuable for sexual health professionals and research.