Non-urgent operations are being postponed at hospitals after a trust declared a critical incident.
Nottingham University Hospitals NHS Trust said the move was due to pressure across the county’s health system.
The emergency demand for care, and the ongoing challenge of discharging patients is leading to high numbers of patients waiting in the hospitals, it said.
The local healthcare system is working together to prioritise and maintain safe services for all of our patients.
A spokesperson said: “As a result, the system is prioritising patients with the highest level of need to ensure that we continue to be able to manage emergency care, and health and care services continue to work together to resolve the situation as soon as possible.
“This means that some operations, where patients require a stay in hospital, will be postponed to prioritise patients with the most urgent clinical need.
“We are extremely sorry we have had to take this step. If you are not contacted directly about an operation being postponed, please continue to attend your appointment as usual.
“We are working extremely hard to ensure our patients are kept safe but there are ways that you can help.
“Our teams are working exceptionally hard, and we would like to reassure our patients and the public that despite the challenges faced, essential services remain fully open for anyone who needs them so if someone requires urgent medical help, they should continue to come forward.”