[A survey of the long-term incidence rate of benign prostate hyperplasia after vasectomy].

Objective: To study the relationship of the long-term incidence rate of benign prostate hyperplasia (BPH) after vasectomy to age and time after operation.

Method: Questionnaire survey, physical examination, and ultrasonography were conducted among 850 healthy males, aged 55 - 76 who underwent vasectomy more than 20 years before and 390 healthy males, aged 53 - 75, who had not undergone vasectomy in Yichang, Hubei province, selected by randomized cluster sampling. The data such as international prostate symptom scoring (IPSS), quality of life (QOL) index, maximum urine flow rate (MFR), and average flow rate (AFR), digital rectal examination (DRE), volume of prostate gland (V), and residual urine (R) were analyzed.

[Experimental study of vasoligation in the treatment and prevention of benign prostatic hyperplasia].

Objectives: To investigate the possibility and efficacy of vasoligation and deferent vein ligation in treating and preventing benign prostatic hyperplasia(BPH).

Methods: 40 male pooches were divided into A, B, C and D groups randomly. Each group has 10 pooches group A and B were made into the model of BPH.