Radionuclide atom scanning may be a sensitive scanning procedure for the detective work of bone pathology. this text focuses on an establishment expertise bone Scintigraphy applications in patients below twenty five years. This study may be a retrospective descriptive study that analyzed the written medical records of patients younger than twenty five years previous referred for atomic number 43 bone scan in Mansoura University Hospital, medical specialty Unit from August 2011 to October 2015. lxxvi patients younger than twenty five years previous were referred for bone scan. the most reason for referral was pathologic process physical exertion. Osteosarcomas and Ewing tumors planted along the most common malignant tumors referred whereas osteochondromas were the most common benign tumors.