Questionnaires were sent to patients who had tracheal intubation for periods longer than three days in a large multidisciplinary Intensive Care Unit. The information sought was of complaints related to talking, breathing, coughing, swallowing and chest infection. Of patients who had been intubated for seven days or less, 63 per cent of the 52 patients responding had no complications while only one of the remainder had a major complication requiring surgical removal of a granuloma. Forty-eight per cent of patients intubated for more than seven days had no complaints and the rest of the patients had minor complaints which did not persist. Most complained of hoarseness. Of patients who had a tracheostomy following prolonged intubation, only 23 per cent were free of complications. From this it is concluded that tracheal tubes can be left in place for seven days and at this time direct laryngoscopy should be done. If no significant laryngeal pathology is seen at this examination, tracheal intubation may be continued.