Vasectomy Reversal: Success Rates, Surgery & Recovery

最終更新日： 2026年5月18日

With increasing divorce rates globally, men who previously underwent vasectomy may change their minds and seek a reversal procedure. A US survey shows that 2–6% of vasectomized men eventually request reversal.

Vasectomy procedure

What is Vasectomy?

Vasectomy is a day-care procedure for permanent male contraception. After local anesthesia, the surgeon makes a small 1 cm incision in the scrotum, identifies both vas deferens, then cuts, ties, and cauterizes them. The “no-scalpel technique” is an alternative approach requiring no incision, with advantages of less pain and shorter operative time, though effectiveness remains the subject of ongoing study.

Vasectomy Reversal operation

Vasectomy reversal (vasovasostomy) is a much more complex procedure than the original vasectomy. It requires general anesthesia, several hours of operative time, and an overnight hospital stay. Microsurgical technique by a well-trained urologist or andrologist is essential for optimal outcomes.

Post-operative instructions that must be strictly followed:

Shower only after 48 hours post-surgery
Wear scrotal support at all times (except showering) for 6 weeks
Continue scrotal support during heavy activity until pregnancy is confirmed
Desk work can be resumed after 3 days
Avoid sports and strenuous activity for 3 weeks
3週間は射精は禁止されます。
Semen analysis at 1, 3, and 6 months post-operatively to confirm sperm return

With microsurgical technique, 70–95% of patients have sperm return in ejaculation fluid, and 30–75% of couples achieve natural pregnancy. The key factor affecting success is time since vasectomy – reversal within 5 years gives the best results. If you need more information, come and see 私オフィスで。

If you are considering vasectomy reversal or want to discuss your fertility options after a previous vasectomy, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. 診療をご予約.

Frequently Asked Questions about Vasectomy Reversal

Can a vasectomy be reversed?

Yes. Vasectomy reversal (vasovasostomy) is a microsurgical procedure that reconnects the vas deferens to restore sperm flow. With skilled microsurgical technique, 70–95% of patients have sperm return in ejaculate after reversal. Natural pregnancy rates of 30–75% have been reported. Success depends heavily on the time elapsed since the original vasectomy.

How does time since vasectomy affect reversal success?

Time since vasectomy is the single most important factor affecting reversal success. Reversal within 5 years of vasectomy is associated with the highest success rates for both sperm return and pregnancy. Beyond 10–15 years, success rates decline significantly due to secondary blockage developing at the epididymis, which may require a more complex procedure called vasoepididymostomy rather than a simple vasovasostomy.

Is vasectomy reversal a day-care procedure like vasectomy?

No. Unlike vasectomy, which is a simple day-care procedure under local anesthesia, vasectomy reversal is a major microsurgical operation performed under general anesthesia. It typically takes several hours and requires an overnight hospital stay. The procedure demands highly specialized microsurgical skill and should be performed by an experienced urologist or andrologist using magnification.

How long does recovery take after vasectomy reversal?

Most patients can return to desk work within 3 days. Sports and strenuous physical activity should be avoided for 3 weeks. Ejaculation should be avoided for the first 3 weeks post-operatively. Scrotal support must be worn continuously for 6 weeks. Semen analysis is performed at 1, 3, and 6 months after surgery to monitor the return of sperm and assess the need for further evaluation.

What if reversal is not successful or not an option?

If vasectomy reversal is not successful or not feasible (due to very long time since vasectomy or epididymal blockage), sperm can still be retrieved directly from the testis or epididymis through procedures such as TESA (testicular sperm aspiration) or PESA (percutaneous epididymal sperm aspiration). These retrieved sperm can then be used for in vitro fertilization (IVF) with intracytoplasmic sperm injection (ICSI) to achieve pregnancy.

**免責事項:** このコンテンツは、バンコク病院本部の認定泌尿器科医であるSoarawee Weerasopone博士によって作成およびレビューされました。教育目的のみのものであり、医学的アドバイスを構成するものではありません。いかなる医療処置を開始する前にも、必ず資格のある医療専門家にご相談ください。.

医学的に記述・監修： ソアラウィー・ウィーラソポーン医師（ポム医師） — バンコク病院本社泌尿器科専門医。国際フェロー：ベイラー医科大学（米国）、順天堂大学（日本）、長庚紀念医院（台湾）。.

ソアラウィー・ウィーラソポーネ博士

ソアラウィー・ウィーラソポーン医師（ポム医師）は、バンコク病院本院の泌尿器科専門医で、男性医学、ロボット手術（ダヴィンチシステム）、腎結石治療を専門としています。ベイラー医科大学（米国）、順天堂大学医学部附属順天堂医院（日本）、長庚記念医院（台湾）での国際フェローシップを修了しています。このサイトのすべての医療コンテンツは、ソアラウィー医師の臨床経験と国際的なトレーニングに基づいて、同医師によって作成・監修されています。.

。。。。