<prompt> The following are true related with regards to vasectomy exceptLeads to immediate sterilityFailure rate is 0.1Involves ligation and division of spermatic cordPartner wife may be given DMPA for 3 months  <response>: Vasectomy consists of dividing and excising a part of vas deferens with spermatic cord.It leads to permanently ending fertility fo men.Failure rate 0.15.The sterility does not occur immediately after vasectomy. Sperms remain in semen for 1520 ejaculations which is approximately 34 months, during which time an additional contraceptive method condom by male or DMPA by wife should be used. 