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Penile sensitivity in men with premature ejaculation

J S Paick1, H Jeong, M S Park

  • 1Department of Urology, College of Medicine, Seoul National University, Korea.

International Journal of Impotence Research
|January 13, 1999
PubMed
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This study investigated penile sensitivity in men with premature ejaculation (PE). Results indicate that increased penile sensitivity is not a significant factor contributing to lifelong PE.

Area of Science:

  • Urology
  • Sexual Medicine
  • Neuroscience

Background:

  • Premature ejaculation (PE) is the most common male sexual dysfunction.
  • Previous research suggested a potential link between increased penile sensitivity and PE.
  • The exact etiology of PE remains incompletely understood.

Purpose of the Study:

  • To prospectively evaluate penile sensitivity in men with lifelong premature ejaculation compared to controls.
  • To determine if penile hypersensitivity is a causal factor in premature ejaculation.
  • To investigate penile sensitivity in both flaccid and erect states.

Main Methods:

  • Prospective evaluation of 18 patients with lifelong PE and 15 controls.
  • Utilized an SMV-5 vibrometer for precise measurement of vibratory threshold.

Related Experiment Videos

  • Assessed sensitivity at specific anatomical sites including the penis (glans, shaft, frenulum) and control sites (ulna, tibia).

    • Main Results:

    • No significant statistical differences in vibratory thresholds were found between PE patients and controls at peripheral sites (ulna, tibia).
    • Penile sensitivity, including the glans penis, penile shaft dorsum, and frenulum, showed no significant differences between groups in either flaccid or erect states.
    • Vibrometer measurements did not reveal penile hypersensitivity as a distinguishing characteristic of lifelong PE.

    Conclusions:

    • Penile hypersensitivity, as measured by the SMV-5 vibrometer, does not appear to be a major contributing factor to lifelong premature ejaculation.
    • These findings challenge previous hypotheses linking increased penile sensitivity to PE.
    • Further research is needed to elucidate the complex multifactorial causes of premature ejaculation.