no-scalpel vasectomy (NSV)

Q | complications

A | You will be asked to sign a consent form prior to surgery. The main complications that may occur are as follows:


  • Haematoma (collection of blood at the operation site) 3.5% of men may have a small collection that will settle with time without treatment. 0.7% may develop a large collection that may require re-exploration of the would and removal of blood clot.
  • Failure to achieve post operation clear semen specimens by 6 months 1-2%
  • Early post operation pain and swelling 10%


  • Late failure of procedure resulting in pregnancy 0.05% (1 in 2000)
  • Late recanalisation (rejoining) of the vas tube after operation 0.1% (1 in 1000)
  • Chronic pain after operation 1-4%