New nurses don't have to train four departments. The Health Planning Commission issued the notice of "Training Scheme for Newly Recruited Nurses (Trial)". According to the notice, if you want to enter a tertiary general hospital to engage in nursing work, you need more than two years of specialist training. New nurses should choose at least 1-2 specialties in internal medicine and surgical system, and each specialty should be trained for 3-6 months; Professional training in emergency department, intensive care unit, obstetrics and gynecology department, pediatrics department, operating room and oncology department can be arranged by the hospital according to the actual situation. So new nurses don't have to train four departments.