Complications after a major procedure like lung transplantation could be devastating both for patients and the transplantation team. Knowledge of common complications is essential to adapt proper preventive and therapeutic measures. Since the nature of problems varies from one center to another, we report here complications after lung transplantation surgery from our center. In a retrospective study, we reviewed hospitalization data of all lung-transplanted patients in our center. We looked for the complications after performing lung transplantation surgery. We classified the complication in to: infectious, surgical, pulmonary, rejection-related and other causes. Regarding the timing of developed complication to the surgery, we categorized them into immediate(less than 2 weeks), early (2 weeks to 2 months) and late (more than 2 months) after surgery. All lung transplanted patients developed a complication during the hospitalization period. 82.6% of patients developed immediate, 56.5% developed early and 52.2% developed late complications. The most frequents complication in immediate phase was surgical (65.2%) and in early and late phases were infectious problems (43.5% and 47.8%, respectively). Altogether, 69.6% of patients developed surgical problems, 56.5% had pulmonary edema, 56.5% had infectious problems, 52.2% had some problem with graft rejection and 78.3% had also some other problems. We observed that complication were very frequent after lung transplantation. Surgical, infectious and pulmonary problems were the most common complications during hospitalization for lung transplantation.