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Microscopic transnasal transsphenoidal surgery (MTTS) has been a time-confirmed effective treatment for pituitary adenomas; however, the data supporting its use in pediatric patients is limited. In this study, the authors summarize the authors’ 5-year experience of pituitary adenomectomy via MTTS in a pediatric population. The authors retrospectively reviewed the medical records of 35 patients aged ≤18 years who underwent microscopic transnasal transsphenoidal approach for pituitary adenomas between January 2011 and December 2015. Age, sex, symptoms, tumor size, extent of tumor resection, surgical outcomes, and complications were reviewed. All patients underwent MTTS 39 times. Total resection was obtained in 31 (88.6%) patients, while subtotal resection was achieved in 4 (11.4%) and no patient had partial resection. For the 21 patients with preoperative visual impairment, 18 (85.7%) resolved and 3 (14.3%) obtained subjective improvement. Of the 33 patients with preoperative hyperhormonal levels, endocrine function reduced to normal reference range in 28 (84.8%), decreased in 3 (9.1%) and 2 (6.1%) patients had no change. Diabetes insipidus occurred in 4 (11.4%) patients, of whom 1 patient (2.9%) developed persistent diabetes insipidus that was treated with Minirin. One patient incurred postoperative cerebrospinal fluid leakage that was resolved by lumbar drainage. Hypopituitarism occurred in 3 patients, of whom 1 patient developed permanent hypopituitarism that required hormone replacement therapy. There were no patients of death, intracranial hematoma, or meningitis. In conclusion, MTTS is a safe and effective surgical option for pediatric pituitary adenomas with minimal morbidity and excellent outcomes.