James Paget Hospital has unprecedented levels of demand.
The James Paget University Hospital at Gorleston in Norfolk says unprecedented levels of demand has left every bed full.
The move follows a substantial increase in patient numbers arriving at Accident and Emergency, over the weekend.
Yesterday (Sunday, 3 January) alone saw 93 ambulances attend the hospital - the average number for a Sunday is around 50.
Hospital Chief Executive Christine Allen said
The hospital say they are reviewing non-urgent surgery for the next few days and patients will be contacted if their surgery is cancelled.
In the meantime, the public are being asked, if it is not an emergency, other options are available instead of calling 999 or visiting A and E.