Risks

The risks of vasectomy are low. The No-scalpel Vasectomy Technique reduces risks by 10 times!

Vasectomy carries a complication rate of less than 2 in 100.

  1. Bleeding may range from minor bruising to a collection of blood accumulating in the scrotum called a scrotal haematoma. Small haematomas usually resolve safely by themselves. Very rarely do haematomas need to be drained surgically.
  2. Infection risks are reduced with vigilant sterile preparation and technique. No antibiotics are usually required before the procedure. Infections are rare but can be serious requiring antibiotics or surgery.
  3. Allergic/adverse reactions may occur to skin preparation, latex, anaesthetic or other equipment may occur rarely but can be easily managed. Please inform us of any allergies you may have including to latex.
  4. Sperm granuloma is a swelling caused by leakage of sperm from the vas. It usually resolves by itself but can cause discomfort and very rarely needs to be drained.
  5. Post-Vasectomy Pain Syndrome is a rare syndrome is characterized by chronic (that is long-term) pain in the scrotum or testicle. This may occur for a number of reasons including pressure in the structures draining into the vas (for example the epididymis or testicle, a picture of the relevant anatomy can be seen here), scarring or nerves being disrupted from the procedure. One of the more robust studies showed less than 1 in 100 men will have pain that noticeably affects their quality of life at 7 months after vasectomy.
  6. Recanalisation is where the two ends of the vas may rejoin and sperm are again free to pass through. This is known as a failure. Again this is rare. Failure may be early (risk about 1/3000) or delayed (which maybe years down the track). Vasectomy stacks up as a superior form of contraception compared to the alternatives. Semen is checked to determine success of a vasectomy.

Misconceptions about the risks of vasectomy

There have been some questions about risks of vasectomy for men in terms of sexual health and overall health.

Sources

  1. Borrell, J.A., Gu, C., Ye, N. et al. Comparing vasectomy techniques, recovery and complications: tips and tricks. Int J Impot Res (2025). 
  2. Leslie TA, Illing RO, Cranston DW, Guillebaud J. The incidence of chronic scrotal pain after vasectomy: a prospective audit. BJU Int. 2007 Dec;100(6):1330-3. doi: 10.1111/j.1464-410X.2007.07128.x. Epub 2007 Sep 10. PMID: 17850378.
  3. Jahnen M, Rechberger A, Meissner VH, Schiele S, Schulwitz H, Gschwend JE, Herkommer K. Associations of vasectomy with sexual dysfunctions and the sex life of middle-aged men. Andrology. 2025 May;13(4):665-674. doi: 10.1111/andr.13804. Epub 2024 Nov 15. PMID: 39545565; PMCID: PMC12006895.
  4. Baboudjian M, Rajwa P, Barret E, Beauval JB, Brureau L, Créhange G, Dariane C, Fiard G, Fromont G, Gauthé M, Mathieu R, Renard-Penna R, Roubaud G, Ruffion A, Sargos P, Rouprêt M, Ploussard G; Prostate Cancer Committee of the Association Française d’Urologie CC-AFU. Vasectomy and Risk of Prostate Cancer: A Systematic Review and Meta-analysis. Eur Urol Open Sci. 2022 May 19;41:35-44. doi: 10.1016/j.euros.2022.04.012. PMID: 35633829; PMCID: PMC9130083.

Before booking, please answer a few quick questions

If you have answered Yes, please continue to book a vasectomy consultation.
If you have answered No, there is a small chance that a vasectomy is unnecessary for you. It is best to book a bulk-billed consultation with Dr Ranaweera first to discuss your options.

Why do we ask these questions?

If you have never caused a pregnancy, there is a chance that you are infertile. About 1% of men are Azoospermic or in other words, 1 in 100 men that do not have any sperm in their semen. They are able to ejaculate but no sperm is present in the semen – that is they are already “shooting blanks”. It may be wise get a fertility test prior to considering a vasectomy.