This page explains what you need to do to extend your stay as a visitor to receive private medical treatment.
You can apply to extend your stay by post or in person at one of our public enquiry offices. You should apply before the date your permission to stay ends.
You should complete application form FLR(O), which you can download from the right side of this page. You should read the guidance notes before completing the form. You will need to send the following papers with your application:
0870 606 7766
UK Border Agency Lunar House, 40 Wellesley Road, Croydon, Surrey, CR9 2BY