London, UK--(Marketwire - December 13, 2007) -

Smith & Nephew PLC

13 December 2007

Smith & Nephew PLC - Transaction in Own Shares

Smith & Nephew PLC announces that on 13 December 2007 it purchased 550,000
ordinary shares of US$0.20 at a price of 598.679 pence per share. The purchased
shares will be held as treasury shares.

Following the above purchase, Smith & Nephew PLC holds 51,270,000 ordinary
shares in treasury, and has 896,186,138 ordinary shares in issue (excluding
treasury shares).

Paul Chambers
Company Secretary

                      This information is provided by RNS
            The company news service from the London Stock Exchange