Objects: Describe characteristics of tonsil that had indication for operation and trends in the indication for tonsillectomy in Viet Nam. Methods: 60 patients had indication for tonsillectomy, studied prospective, descriptive-statistical. Results: Age 15 years old, time: summer and winter. Main symptoms: ferve, pain of throat, sleep - disordered breathing, infection was an indication in 70 percent of cases, obstruction in 17 percent. Conclusions: young patient, trends in the indication for tonsillectomy by infection has dercease, obstruction has increase.