Penile Vibration Perception Threshold in Patients with Premature Ejaculation

Xin, Zhong Cheng; Choi, Young Deuk; Chun, Dong Chan; Park, Jong Hwan; Choi, Hyung Ki

Abstract

We performed penile biothesiometry for determining the penile sensitivity on 56 normal men and 120 patients with primary premature ejaculation (PE) to realize the organic reasons of premature ejaculation. The mean vibration perception threshold at the glans penis and penile shaft was 0.222+/-0.133, 0.124+/-0.046 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 at the glans penis was higher than that of the penile shaft in normal control, but the mean vibration threshold at the glans penis was as much low as the penile shaft in patients with PE (p<0.001). The vibration perception threshold at the glans penis and penile shaft was increasing with aging in normal men, but in patients with PE, consistently lower values were noted with no increasing tendency with age (p<0.001). The mean vibration perception threshold at the index finger and scrotum was 0.041+/-0.023, 0.334+/-0.184 Microns in normal controls, and 0.039+/-0.023, 0.294+/-0.213 Microns in patients with PE respectively. There were no significant differences between two groups (p>0.05). In conclusion, patients with primary premature ejaculation have a penile hypersensitivity regardless of aging. Penile hypersensitivity may give rise to uncontrolled ejaculation, which is thought to be an organic implication of premature ejaculation."