We performed penile biothesionetry for determining the penile sensitivity on 66 normal men and 120 patients with primary premature ejaculation (PE0 to realize the organic reasons of premature ejaculation. The mean vibraiton perception threshold
at
the
glans penis and penile shaft was 0.222±0.133, 0.124±0.064 Microns in normal control, 0.058±0.026, 0.055±0.023 Microns in patients with PE respectively. The mean vibration perception threshold at the glans penis and penile shaft in patients
group
showed significantly lower than that of normal controls (p<0.001). The mean vibration perception threshold dat the glans penis was higher than that of the penile shaft in patients with PE (p<0.001). the vibration perception at the galns penis and
penile
shaft was increasing dwith aging in normal men, but in patients with PE, consitently lower values were noted with no increasing tendency with age (p<0.001). The mean vibration percenption threshold at the index finger and scrotum was
0.041±0.023,
0.334±0184 Microns in normal controls, and 0.039±0.023, 0.294±0.231 Microns in patients with PE respectively. There were no significant differences betwene tow groups (p>0.05).
In conclusion, patients with primary premature ejaculation have a penile hypersensitivity regardless of aging. Penile hypersensitivity may give rise to uncontrolledd ejaculation, which is thought to ve an organic implication of premature
ejaculation.
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