London, UK--(Marketwire - January 17, 2008) -

17 January 2008

Transaction in own shares.

Smith & Nephew plc announces that on 17 January 2008 it purchased 150,000
ordinary shares of US$0.20 each at a price of 607.9775 pence per share. The
purchased shares will be held as treasury shares.

Following the above purchase, Smith & Nephew plc holds 53,507,000 ordinary
shares in treasury, and has 894,244,020 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