Introduction & Objective: Postoperative pain control is among the most important deals of thoracic surgeons for which several methods were proposed. In this study postoperative pain of thoracotomy was compared in intracostals and intercostals sutures.Materials & Methods: In this study, 92 consecutive patients underwent elective thoracotomy were studied. Patients with a history of chronic chest pain, analgesic use, addiction, psychiatric illness, refusal to enter the trial, history of previous ipsilateral thoracotomy and chest wall resection operation were excluded. In case group, ribs were closed by intracostal sutures but in controls, conventional intercostals sutures were used. Postoperative pain was objectified by a numeric pain score at one 2, 3 weeks and 1, 2 and 3 months postoperatively.Results: Two groups were matched for age, gender, number of chest tubes and length of hospital stay. The mean pain score for intracostal group at 1, 2, 3 weeks and 1, 2 and 3 months post operatively was 4.82, 3.91, 2.91, 2.78, 1.82 and 0.5 respectively. For intercostal group it was 5.04, 3.91, 2.95, 2.86, 2.08 and 0.82 respectively. There was no significant difference.Conclusions: Chest wall closure by intracostal suture has no benefit to conventional intercostal suture closure.