One in 10 patients has had an operation, outpatient appointment or treatment rescheduled due to the British Medical Association's industrial action, figures from the Department of Health suggest.
Just 8% of doctors working in the NHS in England went on strike, according to the Government. More than 20,000 patients were affected.
Doctors are taking industrial action for the first time in almost 40 years but what are the arguments for and against pension reforms?
More than half of people surveyed in an exclusive ITV News poll oppose the doctors' strike over pensions that will take place on Thursday.