Patients are being urged to only use Lincoln County Hospital’s A&E department in the event of ‘serious and life-threatening conditions’.
It comes as its operators, United Lincolnshire Hospitals NHS Trust (ULHT), experiences high demand for A&E services at the site.
Dr Suneil Kapadia, medical director, said: “We strongly urge people in Lincolnshire to leave A&E for those who really need it, otherwise we risk putting huge pressure on a vital and highly valued resource in our county.
“A&E is for people with a life threatening or serious condition, such as heart attacks, strokes, breathing problems, or serious accidents - those who need immediate attention.”
Dr Kapadia said it is estimated up to 30 per cent of all those who visit A&E departments do not need to be there, as they have more minor illnesses and injuries that could be better treated elsewhere.
He added: “For people who want urgent advice or treatment, there are many alternatives to attending A&E. People can seek advice from one of over 100 local pharmacies, call NHS 111 24 hours a day, visit a walk in centre, or seek advice from a GP. We would advise people with minor injuries to consider attending their local walk-in centre in the first instance.
“Visit the NHS Choices website to find your nearest pharmacy or walk in centre, their opening hours, and the services they provide.”
A spokesman for ULHT said that no single incident or issue has caused the pressure on the hospital’s A&E service.