Chronic obstructive pulmonary disease usually doesn't require hospital admission. However, the course of the disease is characterized by frequent exacerbations that often require hospital admission, representing a good chance to define all aspects of chronic obstructive pulmonary disease and improve the management of the patient. When the patient is discharged from the hospital, an essential Report should specify the reasons of admission, the symptoms (e.g.: cough, sputum production and dyspnoea) and the findings of physical examination, the results of the main laboratory and radiological tests performed (pulmonary function tests are essential to define the severity of degree of airway obstruction and useful for its longitudinal assessment), the treatment administered, the final diagnosis, the suggested therapy, the follow-up appointments and the recommendations (nutrition, psychological support, muscle reconditioning) of a possible rehabilitation program.