More than 86,000 NHS posts were vacant between January 2017 and March 2017, the latest NHS Digital figures for the health service in England suggest.
The report shows the number of vacancies climbed by almost 8,000 compared to the same period in 2016.
Nurses and midwives accounted for the highest proportion of shortages, with 11,400 vacant posts in March 2017.
The data included job adverts published on the NHS Jobs website between February 2015 and March 2017.
The figures suggest there were 30,613 full-time equivalent vacancies in England advertised on the website in the month March 2017 – the highest month on record since collection of this type of data began in February 2015.
Nursing and midwifery vacancies have topped the list since these figures have been collated.
The data includes adverts for doctors, dentists, administrative, clerical staff and technical and scientific staff. The figures do not include vacancies for GPs or practice staff.
And, as other ways of advertising NHS jobs – including adverts seeking overseas applicants – exist, NHS officials say caution must be used when interpreting the results.