This case involves a male patient who sustained a number of traumatic wounds during a serious skiing accident. He underwent surgery in order to repair internal bleeding, and was closed after several hours. However, a felt sponge was inadvertently left in his chest cavity. Subsequently, the patient began experiencing several symptoms including severe fatigue, constant pain, nausea, and vomiting. Several weeks later, a workup revealed the likelihood of a foreign body in his chest cavity. The sponge was successfully removed but the patient suffered from several complications including bleeding and abscess.