The Full form of OPD is Outpatient Department. An OPD is designed to be a first contact point between the patient and the hospital staff in a hospital department. A Patient who goes first time to the hospital, he directly goes to OPD and then the OPD decides to which department a patient should go. It is a facility given to those patients who are given treatments or consultations and are able to leave the clinic and then visit again i.e. the patients who do not need to be put in a bed. An OPD is generally constructed on the ground floor of any hospital and divided into several parts like Neurology department, Gynecology department, Orthopedics department, General medicine department etc. Here the patient completes all the formalities and then go the respective department. An Outpatient is the patient who is not hospitalized for 24 hours or more but visits the hospital or clinic for treatment or diagnosis and an Inpatient is the patient who is admitted in the hospital for overnight, several days or week.