The British Medical Association said the decision for doctors to take industrial action over pension changes had not "been taken lightly", in an open letter to newspapers.
A majority of BMA members decided to take action over the changes, with doctors set to refuse all non-urgent care on June 21. The letter, printed in The Daily Telegraph, Daily Mail and Sun, said: "On that day, doctors will be in their usual workplaces but providing urgent and emergency care only.
"We will be postponing non-urgent cases and although this will be disruptive to the NHS, rest assured, doctors will be there when our patients need us most and our action will not impact on your safety."
How will the industrial action planned for June 21 affect you?
Doctors will turn up at work as usual. They will handle all emergency and urgent cases. So what kind of strike is it?
Doctors are to take industrial action for 24 hours in protest at the Government's controversial pension reforms.