Long-term effects of vasectomy on the pituitary-gonadal axis
Peng, X.S.; Li, F.D.; Miao, Z.R.; Wong, Y.; Hu, X.Z.; Zeng, F.X.; Wu, X.Q.; Lan, J.
Sheng Zhi Yu Bi Yun 6(1): 18-21
1986
ISSN/ISBN: 0253-357X PMID: 12267913 Document Number: 435454
The longterm effects of vasectomy on the pituitary-gonadal axis were studied in 804 commune members between 30-65 years of age in Chengdu, Sichuan province. The 515 vasectomized individuals operated on between 3-25 years previously were compared with 289 age-matched unvasectomized volunteers. No significant alterations were observed in serum testosterone concentrations in those men ages 30-65 who had been vasectomized between 3 and 20 years ago. The serum LH and FSH ooncentrations in those aged 30-39 who had been vasectomized 5-10 years previously had significant alterations, but these changes returned to normal with increasing age and passage of time. Thus, minimal endocrine effects as a result of vasectomy were observed in subjects between the ages of 30-65 who had undergone vasectomy in the last 20 years. (author's modified)