This website has been developed and fully funded by Bayer plc for a UK audience only.
Disclaimer and side effect reporting information can be found at the bottom of the page.

PROS

CONS

The pros and cons listed are not exhaustive. Talk to your doctor or nurse for more information.

 

SIDE EFFECTS

Vasectomy side effects

In most men, the only side effects of a vasectomy will be mild discomfort, swelling and bruising of the testicles for a few days afterwards. In very rare cases more long term and complicated side effects may occur. This could include:

  • A collection of blood inside the scrotum (haematoma).
  • Hard lumps caused by sperm leaking from the tubes (granulomas).
  • Surgical site infection.
  • Long term testicle pain.
  • The vas deferens tube can reconnect (but this is very rare).

PP-UN-WHC-GB-0307 July 2025