abstract:A senior house officer (SHO) is a junior doctor undergoing training within a certain speciality in the Republic of Ireland or formerly in the British National Health Service. SHOs are supervised by consultants and registrars, who oversee their training and are their designated clinical (and in many cases educational) supervisors.
Until last year junior doctors went through three stages of training - pre-registration houseofficer, seniorhouseofficer and finally specialist registrar.