Serious Complications following Tonsillectomy: How Frequent Are They Really?

The most common postoperative complication of tonsillectomy is bleeding. However, the incidence varies considerably across studies depending on the study design, follow-up and definition of postoperative bleeding. Other serious adverse events, such as neurological disabilities, emphysema (with or without pneumomediastinum), or vascular problems outside the neck are infrequent.