Staff at London's East End hospitals are working round the clock, to deal with the extra visitors from abroad.
The Royal London hospital has planned for an increase in patient numbers over the games.
Our Health Correspondent Liz Wickham has more.
More top news
A drunk man who narrowly escaped death when he lay down between train tracks in Harlow has been given a 12-month community order.
A man from north London has been charged with the manslaughter of Louella Eve Fletcher-Michie, who died at the Bestival music festival.
The mother of Ellie Butler - the six-year-old murdered by her father - has lost a bid to challenge her conviction.