Vasectomy is a commonly used, highly effective method for the control of fertility in the human male. It is almost always performed as an outpatient procedure, is safer than tubal occlusion [1] and has few side effects [2]. The number of people relying on vasectomy as a method of contraception varies widely from country to country. Though vasectomy is highly effective, failures may occur due to re-canalization of the vas, surgical error, anatomical variants or failure of contraception during the post-operative waiting period. One of the disadvantages of this technique is that sperm are present in the posterior end of the vas following surgery and hence patients have to use alternative methods of contraception for a waiting period of 12 weeks to 15 weeks before relying on a vasectomy for contraception. This review summarizes recent research on vasectomy conducted by Family Health International, USA.
    
    

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