Male sterilisation is a permanent form of contraception that tends to be favoured by men in the older age- groups. In the US, 20 per cent of men over 35 have had a vasectomy, and around a half-million procedures are carried out each year. It is...
Elective surgery is any procedure that is subject to choice, as opposed to urgent or emergency surgery that must be performed straightaway. You can derive benefit from an elective procedure, but it may be better to wait a while before having it done.