What are junior doctors called?

It is a difficult question to answer as the names keep changing. Here is a timeline about training as a (typical) NHS doctor, and current (and previous) titles and names.

Year 1.   Medical Student (Age 18 years) – training starts
Year 2.   Medical Student
Year 3.   Medical Student
Year 4.   Medical Student
Year 5.   Medical Student, qualifying as a doctor
Year 6.   Foundation Year 1 (F1). Previous term = ‘House officer’, HO (or Junior House Officer, ‘JHO’)
Year 7.   Foundation Year 2 (F2)
Year 8.   Core or Specialty Trainee (CT1/ST1). If medical (not surgical), also called an ‘IMT’. Previous term = ‘SHO’ (Senior House Officer)
Year 9.   Core or Specialty Trainee (CT2/ST2) – SHO
Year 10. Core or Specialty Trainee (CT3/ST3) – SHO
Year 11.  Specialty Trainee (ST4) – ‘Registrar. Previous term ‘SpR’ (Specialist Registrar) and before that ‘SR’ (Senior Registrar)
Year 12.  Specialty Trainee (ST5) – Registrar
Year 13.  Specialty Trainee (ST6) – Registrar
Year 14.  Specialty Trainee (ST7) – Registrar
Year 15.  Specialty Trainee (ST8) – Registrar
Year 16.  Consultant (Age 34 years) – training complete.

For different types of doctor, the training is slightly different. For example, a GP does a 3 year GP training scheme in years 8-10, and then can work independently.

Summary

We have described what are junior doctors called. We hope it is clearer now.