Where inpatient medicine involves patients who are admitted to a hospital, outpatient medicine allows patients to receive care and go home the same day. This generally reflects healthier patients having less complex interventions (whether checkups, surgeries or other). However, there is a growing movement to try to perform more and more complex procedures as an outpatient, because then there will not be the expense and aggravation of a hospitalization. For complex interventions, the physician must make sure the patient is going to recover well, since there will be no followup that night.