LONDON, UK--(Marketwire - May 16, 2008) -

Transaction in own shares.

Smith & Nephew plc announces that on 16 May 2008 it purchased 180,000
ordinary shares of USUSD0.20 each at a price of 549.5596 pence per share.
The purchased shares will be held as treasury shares. 

Following the above purchase, Smith & Nephew plc
holds 60,194,483 ordinary shares in treasury, and
has 888,580,916 ordinary shares in issue (excluding treasury shares).

Paul Chambers

Company Secretary

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