Injection laryngoplasty is one of the most frequently performed procedures in patients with glottic insufficiency. Various materials and injection sites have been used to medialize the true vocal folds. Ideal material would be easily injected through a fine- gauge needle, well tolerated, long lasting and without complications. Although injection laryngoplasty rarely result in complication, physicians must be familiar with the types of complications that can occur. Proper diagnosis and prompt management of complication can result in good outcome.