The Nuss procedure is a popular new technique for the correction of pectus excavatum (PE) [1-2]. Delayed hemothorax is an extremely rare complication which often occurs within 1 to 2 months postoperatively [3-5]. Emergent tube thoracostomy is mandatory and surgery is indicated if the hemodynamic status remains unstable or continuous hemorrhage is noted [6]. We report a patient who experienced delayed hemothorax 6 months after a Nuss procedure for recurrent PE. This condition was caused by injury to the rib under the pectus bar with active bleeding.