STUDIES ON INFLUENCE OF THE VASECTOMY
REPORT I; CLINICAL STUDIES ON VASECTOMY
1958 Volume 49 Issue 2 Pages 97-108
Details
1958 Volume 49 Issue 2 Pages 97-108
The author examined the sexual life and general condition of 312 persons who had passed 20 days to 5 years after a vasectomy for sterility. In some of them 17-Ketosteroids in urine, quantity of semen and fructose in semen were measured, and histological and histochemical investigation of the testis was performed also.
1) The main reasons for the vasectomy were weakness of their wives (46.2%), economical reasons (23.1%) and birth control (20.2%). There is little influence by the vasectomy on such sexual conditions as quantity of semination, the time from coitus to semination, sexual feeling, sexual livido, strength of erection, as well as such systemic conditions as body weight, general condition, physical and mental labor force, and sleeping. About 98% of them were satisfied by the surgery.
As to the sexual feeling and sexual libido, many of them complained of an increase for a few years after operation.
The increase in the sexual feeling, sexual libido and the strength of erection was more evident in young people than in aged.
2) The average value of 17-Ketosteroids in urine was 8.95±3.63mg/day in the patients and it was much the same with the average of 27 normal controls (9.87±2.12mg/day).
3) The average value of one ejaculation in 17 cases 41 months after the operation was 1. 806±0.33cc. (2.23±0.33cc. on the average in 21 normal controls) and the average value of fructose in the semen was 180.8±52.6mg/dl (235.9±28.6mg/dl on the average in 21 controls) and, therefore, there seemed to have been little change in these factors by the surgery.
4) The biopsy of testis on 13 cases from 20 days to 40 months after vasectomy showed a decrement in the spermatogenesis, an incrassation of the basement membrane of seminiferous tubule, a proliferation and fibrous change of the interstitial connective tissue, a hyperplasia of the interstitial cells, and a drop of phosphatase activity in the seminiferous tubule.
From these results, it was supposed that the hormone metabolism, sexual life and general condition of body was little influenced by the vasectomy.
