Dorsal penile nerves and primary premature ejaculation.
BACKGROUND
Based on our clinical experience, the number of dorsal penile nerves in patients with primary premature ejaculation (PPE) is not consistent with the average number (2 branches). In this study, we evaluated the number and distribution of dorsal penile nerves among healthy Chinese adults and patients with PPE.


METHODS
The dorsal nerve of the penis, the deep dorsal vein of the penis, and the dorsal artery of the penis between the deep fascia of the penis and the albuginea penis were carefully educed, observed, and counted in 38 adult autopsy specimens. The number and distribution of the dorsal penile nerve in 128 surgical patients with PPE were determined.


RESULTS
The numbers of dorsal penile nerves of the 38 cases were as follows: 7 branches in 1 case; 6 branches in 1 case; 5 branches in 6 cases; 4 branches in 9 cases; 3 branches in 14 cases; and 2 branches in 7 cases. Most of the dorsal nerves were parallel to each other and in the dorsum of the penis. In only 8 cases, the branches were connected by some communicating branches. In 4 cases, 1 or 2 thin dorsal nerves continued their pathway over the ventral aspect of the penis. The average number of branches of the dorsal penile nerve in patients with PPE was 7.16.


CONCLUSIONS
Based on the study of 38 cases, the average number of dorsal penile nerves was 3.55 branches and that of patients with PPE was greater. These preliminary results suggest that the excessive dorsal penile nerves may have an impact on PPE via increased sensitivity and provide topographic data for the possible treatment of PPE.
Zhang
Hai-Feng
HF
Department of Urology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China.
Zhang
Chun-Ying
CY
Li
Xing-Hua
XH
Fu
Zhong-Ze
ZZ
Chen
Zhao-Yan
ZY
D000328:Adult; D004542:Ejaculation; D006801:Humans; D008297:Male; D008875:Middle Aged; D010413:Penis / Q000294:innervation*; D012735:Sexual Dysfunction, Physiological / Q000473:pathology*; D055815:Young Adult