Postoperative pulmonary complications are common and infer greater risk of morbidity and mortality to surgical patients. Careful preoperative evaluation can identify undiagnosed and undertreated illness and allow for preoperative intervention. Hence the present study was conducted to determine the postoperative pulmonary complications occurring in the study population and to assess the correlation between the preoperative pulmonary evaluation findings and the postoperative pulmonary complications occurring in the study population.