Background: Tooth impaction is a pathological situation where a tooth fails to attain its normal functional position. Removal of third molars, known as wisdom teeth, is one of the most common dental surgical procedures representing more than half of all extractions among persons with insurance aged 16 to 21 years. Hence: assessment of incidence of post-extraction complications in patients undergoing third molar extraction. Materials & methods: A total of 250 patients who underwent extraction of impacted third molar were enrolled. Data records of all the patients were obtained from data files. A Performa was made and complete demographic and clinical data of all the patients was recorded in it. Follow-up record of all the patients was maintained for assessing the occurrence and type of postoperative complications. Recording of all the postoperative follow-up details was done and incidence and type of postoperative complications was recorded. Results: Postoperative complications were found to be present in 19 patients. Therefore; overall incidence of occurrence of postoperative complications was 19 percent. Postoperative swelling was found to be present in 7 patients, while postoperative pain as present in 8 patients. Dry socket was found to be present in 5 patients while nerve injury as found to be present in 3 patients. Out of 19 patients with postoperative complications, bone removal was done in 10 patients while tooth sectioning was done in 5 patients. Conclusion: Postoperative pain, swelling and Trismus are the most commonly encountered postoperative complications among patients undergoing third molar extractions. Key words: Third molar, Complication