Adenoid hyperplasia is the main cause of obstructed transnasal breathing and runny nose in children during sleep. Adenoids are lymphatic tissues that grow in the posterior nostrils and are active in children, but slowly shrink after puberty. If the adenoids are overgrown, they will obstruct the posterior nostril and cause difficulty in breathing through the nose, and children need to open their mouths to breathe. At the same time, due to nasal obstruction, rhinitis and sinusitis can occur. Therefore, removal of adenoids not only improves the breathing status of children, but also improves the symptoms of rhinitis. At present, adenoids are removed by adenoidectomy under general intravenous complex anesthesia, which is thorough and effective. The specific removal method should be done with an electric suction cutter, which is clean and rapid. Although plasma can also be used to remove adenoids without bleeding during surgery, it has the disadvantages of being expensive, not easily distinguishable from normal tissue during surgery and postoperative edema. Both modalities have their advantages and disadvantages, but both are among the best treatments available.